Experienced DMs of the Play by Post community, I need some helpful tips and tricks on how to set up my first (sorta) PbP game... You see, me and my usual group started a new in person campaign late last month, we got through session 0 then all went to heck when my usually open weekend got crammed with a Christmas Party every single time and the players were to generally busy throughout the week to set up a week day session. At the end I'm left to try and keep the campaign afloat and going until December is over and we can meet in person again. I've scoured YouTube and come up with nothing, I've read some of the PbPs on the website but I just can't seem to get it right. This is going to be the last campaign I'll be able to play for several years and I really don't want it to fall apart. If you guys could give me some tips on how to handle Social Interaction and basic Combat you'd be my saving grace.

It's play by post so you go to the play by post forum, create a thread, label it private and send a PM to your players with a link to the thread. Set some kind of expectation like 1 post per day minimum, or somesuch.

The icon that looks like a d6 "3" is the dice roller. It has tabs for regular rolls, combat rolls, and stat generation rolls.

Regarding the RP part, you make a post in the same way as you would present a situation to the group in real life. Then you wait. 

There is sometimes a bit of rewind due to how PbP works but in the end, most players and GMs work out the wrinkles. This sometimes happens when two players want to do conflicting actions - Talk to the goblins or kill the goblins. Just like at a RL table, you write a post  asking what the party really wants to do. You can have them go to the original PM to talk it out in order to keep the game log free of clutter.