What should I do with my Travel Trailer? Student needs help!

How will the possibility of mold where the water intrusion damaged the wood affect your health? Looks like that is right near the mattress of the bed. Can you fix the leak or will you get wet?
Otherwise, it seems you could try it for a semester and then decide if you want to continue to live in it. Electric brakes are not a big deal if parked and not towed, and are fairly cheap to fix.