You need to CAP your rhyming words, You need less filler... (which is words in the verse that are not needed and just put there for transitional purposes...Less filler the better) You have simple basic Punchlines that are all over used, you need to be more complex and creative with what you come up with, If you're going to talk about yourself in a battle, make sure you equally if not more diss the other person and throw as many punches as possible. You also want a strong ender, Likely the best punch in the verse to close it with. Try not to say " You" a lot too. Say "this dude" or their name or Bitch or anything...mix it up.