First of all I don't know if I am posting this in the right place or not so sorry.

But anyway I recently injured my arm (just a scrape or rugburn. I don't think I need to be seen.) and I am not really worried about it but it does hurt. This is also happening at a pretty busy time for me in relation to my projects.

So anyway, what should I do? Am I being a wimp? Should I continue working on my game stuff or should I take a few days to recover? I know this is probably a stupid question but it is the first time I have ever had to make a decision like this.

Definitely take some rest. Your well-being comes first.

Take a rest and work on something else. Otherwise, it may become worse, and you will lose even more time. 

I have had to take many months away from game dev to recover from injuries or illness.  If taking care of your health interferes with game dev, prioritize your health in all cases.  Your projects aren't going anywhere.

Take some break to recover, you're not in hurry to finish your game.

health comes first, i suggest recovering, as it also might increase the quality of the outcome of your working

Resting is important. I hope you get better : D