New to Hypnosis - How to make it more effective?

[tripplethreat]

Hello all. I've been interested in hypnosis in a long time but I just started downloading some files. So far nothing has really worked. I just want some tips, I suppose. In how to make files more effective or how to make myself more susceptible to them. How many times must I listen to a file for it to have any effect? Basically I need some beginner tips.