Is there any way to make it so you can steer with mouse (my wheel broke) but still use pedals to accelerate and brake?
yes, I think so. Go onto controllers in the options menu, then click wheel/js Click steer, and input your mouse steering Click accelerate and brake - and input your pedals That should work!
I tried that as my wheel broke recently It didnt work I tried to get it to work but it just didnt =/ just my experience