Should I stay or should I go ( MMA,kung fu, ect) anybody!?

Go with what you feel is best but I would really go with mma. There are no theories in mma all the styles they train in work in real life situations. Muay thai, boxing, wrestling, jiujitsu. Those are the main arts that are practiced. An mma fighter is a COMPLETE fighter where as a tkd guy gets taken down to the ground and he's clueless, a wrestler gets taken down and doesn't know submissions, in mma you get the total package.