You can control fire and be immune to fire, but only when submerged in water.

My power is powerful psionics.

You just got them however, and don't know how too use them at all

I can magicly grant wishes like a genie, too myself or others. without being bound to a lamp.

You can grant wishes, but have no voluntary control over it, granting any wish that you hear, and cannot wish this to be restricted. You tried, in many ways.

My super power is being able to change anything to be a different colour.

You can but you also give them a horrid smell also.

My power is predicting what the players will do in a campaign.

You can predict what the players will do in a campaign... that you're not in

My power is technopathy

You can but you are to be left powerless away from modern society and requires close proximity to the object being manipulated!~ 

My power is Planetary System Creation~~~ <3

...but none of them can support any form of life. Yay.

I can never misspell words...

You can never misspell words as you can no longer write!

My power is an ever-expanding intellect, being the smartest being in existence.

But you go crazy from all the knowledge.

I can predict when someone near me will roll a 1 or 20 on a 1d20

But you have only one spell slot that you can only get back after a long rest.

I know magic with infinite spell slots.

But you don't have the spellcasting class feature to utilise them.

My power is the midas touch, but I can suppress it when I want to.

But instead of turning things into gold, they turn into salami.

I can see into the future...

You can only see into the future, about ten years from the present. It makes it a pain for moving through day-to-day life, but if you survive that long you'll have those lottery numbers memorised!

I can read people's minds!

...but you need to be touching your target's head to do so.

I can come up with new, unique superpowers...

... but never gain them.

I can survive any hazards or natural disasters completely unharmed!

Good for you. You're the last human on earth.

I legendary bow skills.

Quote from Tyto_Gamer >>

I legendary bow skills.

You are legendary bow skills. You are now a concept which people strive to achieve, giving up your physical existence. 

Well, I'm technically immortal now. Gotta love typos!

I have legendary bow skills.