Help with whip manipulation!

Guys I badly need help with whip manipulation. I’ve seen people do it so many times: You do a whip thingy like wrist whip but catch the string in mid-whip and then whip it round the other way! Help please!!

It really just takes practice. Mess around with it. Experiment with where you hit the slack with with your nonthrowhand, experiment with hitting it harder or softer, and just mess around with different possibilities.