I am 15 and currently go to an mma gym that teaches 2 muay thais 2 jiu jitsu's and 2 judo classes per week. I am 5'4 115-118 lbs and have been going for a bout 3 1/2 months, maybe took 2 or 3 week break along the way. I do very well in thai and can actually do well in the sparring sessions and was even asked by the coach if i wanted to start training for fights with him.. Now to the bjj, it is coming to the point where i have second thoughts about JJ. I can't even make it 1 minute without being tapped out. Granted everyone there has a bout 40+ pounds on me atleast but it is still extremely frustrating. If anyone can give me some tips, help, etc that would be great. The only positive i've gotten from bjj is the fact that i do great on my highschool wrestling team when i wrestle people my own size.