Is my microwave cooked?

In my camper I have some kind of high pointe microwave that I recently cooked 2 packs of frozen food in for 15 minutes each, and after about 13 to 14 minutes on the 2nd pack it turned off and it was really hot. The breaker never tripped and I unplugged and plugged it back in but I got nothing. I don't know how hard it is to repair a microwave or if I should just buy a new one. Do y'all think it's worth it to repair it?