im not sure that you want to try to be the best
what i mean is train everyday like its ur last, or your last fight or like everyfight is the most imporant fight for you, then being the best will come if you are inf act the best, or it wont and maybe you will be good, or maybe you will find out its not for you.
Pick your styles and start training, as you go you can ask more "specific" questions, but thats the best asnwer i can give to the "be the best" question.