Heres my 2 cents. I think its great that you are motivated at this point about becoming an mma fighter. It is a great sport and will push you to your limits mentally much before it does physically. The hardest part for me was the beginning, because in the beginning you learn how you respond to being punched, elbowed, and kicked in the face, and to be real with you some of the tuoghest bastards in the world ball up like biatch when caught on the chin one good time, everyones different. A good school is very important, and you need to realize when you join a new team you going to be tapped a million times before you tap someone and that is fine. the veterans and your coach will be looking for how you respond to being tapped, we get guys at our gym that show up ready to fight and never return after one night or circuits, sparring, and grappling because there feelings were hurt due to tapping all night. I am 215 pounds and I have no problems telling you that my first night off bjj back in the day I was submitted by guys weighing under 150 pounds, its just part of it. Take the journey slow, learn from the veterans, ufc guys are cool and have alot of insight to share but the amatuer warriors that have 60 - 100 fights under there belts are invaluable and picking their brain is a must. Most teams atleast where I train, wont back you to fight until your teacher thinks your ready, especially if yor teacher is the cornerman for your fights, which is usually the case. Everyone in this game is skilled in there own way, thus you will be too with time and alot of effort. And then you too may sport the cauliflower ear proudly......good luck bro.