you need to make your flow better and you also need a better vocab
and make you rythms better
don't just make the end words rhyme go like this

nobody got the heat can't stand this shit so i kill what they speak
lying at my feat blood on the ground all around look so bleak
like tupac does heat n feat then speak n bleak
or like biggie
im a gangsta in 8 states im a felon ask why shot gun put the shell in blast ya fuckin ass n put a hole in your mellon
my move is the size of a rebellion i amm the shit
fellon shell in n mellon rhyme together than rebellion goes with that for the last one then you can say any ending rhyme with that
then you rhyme off of shit but the trick is to have the same amount of rhyming words you used in the first on so that the flow is all the same
then when you get better you make the cyllibals all match up and it flows unbalivable but its mad hard
but thats how you can get better
you need to follow a rhyme scheme you can event make your own up