Hey, I'm new here and just getting into D&D, been wanting to for a long time. 
What I want to create is a character similar to my superhero I made for myself, I have peanut powers. 
So I went with Goliath, since race wise they seem to have a slight strength and hitpoint increase, which goes along with my hero having extra strength and "armor" from having thick skin like a peanut shell....

I then thought I would choose Sorcerer class, I can give myself spells that match somewhat to the powers I have right? like for instance, my one power is i can create peanut-butter to slow down the movement of things, so i thought there might be a spell that could turn the earth below something into a thick, goey, muddy, peanut-butter like substance? Earth Move seemed the closest, i did make a homebrew spell out of it but I doubt it's "legal" (I called it Transmute Earth) but is there any spell that can turn the ground below something into mud?

Another power i have is i can shoot peanuts at things, Catapult seems to be the closest, but peanuts aren't 1-5 pounds, and it says "an item not worn" so not sure if i can in play for my turn say, "I take a 1 pound bag of peanuts out of my bag and dump it into a pile in front of me then use Catapult to throw the pile"? or is there a spell that shoots a small item, maybe it lets me shoot multiple items as i level up? (again i tried a create a spell, editing catapult (Bullet Spray), but multiple small items would hit different than one 1-5 pound item so i don't think 3d8 damage works, plus i have no clue what that means)

I also want some sort of flight, I see there is an air spell I can use to let me fly for a bit so i was planning on utilizing that one

other powers i have that i would like to maybe have on my D&D character would be that I can create walls of peanut brittle or make it form around objects but its somewhat fragile and i can trap things in giant peanut shells (larger the shell the more energy it saps from me)

I appreciate all help that anyone can give me, any suggestions you can give me please!

Don’t make a character based off of yourself, it sucks when your character dies.

If I may, D&D is more swords and sorcery. Try to make a character that fits, don't try to make the rules fit your idea. This idea is rather outlandish.

BUT... in spirit of the request...

I'd go with a warlock and simply re-flavor the spells as peanut-flinging powers. You'd have to include different flavor peanuts- so Eldritch Blast is your typical, force-powered peanuts, then perhaps a Hellish Rebuke is your hero flinging a handful of Red Hot Peanuts at the ground around you that erupt in flames.

Re-flavoring is totally fine as long as the GM is cool with it. You can apply this to anything- if you wanted more literal peanut-throwing, try a Ranger build that uses throwing axes and replace everything 'throwing axe' with 'peanuts'.

I appreciate the comment, but i know how outlandish it is. For me that sounds fun, to create a wizard who instead of being the ordinary long robes, staff, instead creates himself as a superhero in the past. Before they knew what super heroes were. Fights for Truth and Justice. Twisting his spells not knowing the things he's doing, maybe its Isekai, maybe I make it where the modern day hero is transported into the days of yore a magical realm, where he finds his powers were given to him by something in the past and thats why he was pulled back here, and he needs to blend into this magical realm, make it his home now. 

Sorry, i'm sure that's very different than what many who have been into this for years thinks, but for me, from all the D&D channels I watch, i really enjoy the fun outlandish ones like Harmonquest and even from Community. Around me a lot are into this non-traditional style, weirdly-creative

I really hope i don't offend anyone by wanting to create the outlandish?(tone is quite lost in text) I was told by someone else that Warlock is more cursing so traditional wizard or sorcerer would be a better choice. They said you can make something different, like his character throws daggers, but he calls them kunai, and in his mind they are traditional kunai but they act as daggers. So Eldritch Blast seems like a good idea for me, where the "energy" is a peanut. And i love the idea of the fire peanuts too. I'm not trying to twist the lore to fit what I want but more trying to see if what I want can be done by the lore. Like I usually use earth based powers to look like peanut based, thick mud is peanutbutter, firing dirt clots are shooting peanuts, dirt walls are peanutbrittle walls or shells, something like in naruto where the villain made a dirt tomb is like trapping something in a peanut shell. 

I just didn't know if there are spells like, shooting dirt clods, or making dirt tombs, walls of dirt. and then i can discuss with the DM of them being peanut based instead of dirt, like my friend who has kunais instead of daggers...

As far as turning the ground to something, the first thing I Think of is grease. Not sticky, but it does impede movement. 
Catapult is probably your best bet for flinging things. It would be unwieldy to carry around lots of bags of peanuts, but you’re realistically only going to do it a couple times per day. If I were DMing, I’d probably let you go ahead and do it, say like you’ve designed extra tough sacks so they don’t break and you can re-use them. 
For flight, there’s fly, very simple. 
There’s a number of “Wall of ______” spells your DM might let you use one and re-flavor it as peanuts. 

Two thoughts:

#1: Remember your character will start at low levels, so he might have to learn some of his stronger powers (like flight) later on. Think Doctor Strange, who has to learn his powers through study, practice, and experience, rather than Captain America, who gets all his powers right away.

#2: Talk to your DM! Some DMs might feel like a peanut superhero is too silly for the game, in which case you might want to switch to a more classic character. On the other hand, some DMs might let you rename spells (i.e. Ray of Sickness becomes Peanut Allergy, Grease becomes Peanut Butter) and describe them as peanut powers in-game.

#1 that makes a lot of sense, i wasn't sure how the spells work, if it was like on Fable where as I level up the spell i chose grows and changes into a different version, or if all the spells are just different spells and i can only learn some with so high a level.

#2 i don't have a DM yet, but my coworker is in a group and says i would be allowed to do so, i was trying to work on creating the character and then read up on what i need to know to play. I guess my question would be, if i do rename  Ray of Sickness to Peanut Allergy, and then I am invited to a more straightforward group, could I use that character but the renamed spells use as traditional, or maybe I should create a few characters maybe instead of just one?

Spells are different, and you learn new ones as you get to a higher level an have access to new, more powerful spells. Some spells, you can "upcast" meaning you cast a lower level spell with a higher level spell slot. This usually doesn't change the way the spell works, but makes it more powerful, like you might roll more damage dice, or a spell that normally effects three creatures can effect four.

Renaming a spell would have no impact on how it is used in play. So it really wouldn't matter if you had to swap back and forth between the official name and the one you come up with. So, no, you shouldn't have to make a whole new character just to change a name. And, if the rest of the group is straightforward and doesn't like the sillier names, you can always think to yourself you are using peanut allergy when you say "I cast ray of Sickness."

Either way, I would suggest getting a copy of the Player's Handbook, either in print or digital, and reading it over before you make your character. Your character will be more effective if you understand what you are doing. Or better would be to have someone more experienced help you, in addition to reading the book.

Also, as a new player, you might want to make a few different characters just to try them out, at least in theory. Sometimes you might find different character concepts work better with different classes than you had expected. Or you might find something totally different actually looks like it might be more fun to play. Once you start, you'll need to stick with just one (usually), so explore your options before you start.

The_Goob,

https://www.dndbeyond.com/sources/basic-rules

Here, read chapters 9 & 10 to learn how the game works. For your first character, I would recommend starting with something from the book just to get a feel for how the game works. Save your peanutlord for your second character after you have a better understanding of the game.