Help me with passing in volleyball!?

how do i do the correct foot work so i wont shank the ball. this only happens when people serve it to me not when people toss it. how can my foot work be quick enough so i can get a good pass. also, how do i put my hands together with my platform so its even. when ever i try to react quickly my platform goes crooked and i shank. i need to know if i need to put my hands together slower and more in advance or not. and how to position my self so i can get a good pass or "predict" where it will go.THANKS!!!!!!!