You must read "Ejaculation Trainer" by Matt Gorden, here you can find the electronic version (PDF format): http://www.ejaculationtrainer.mobi
It explains how to end premature ejaculation for good. It’s basically a blueprint on how to develop natural control over your ejaculation. It actually reprograms your ejaculatory reflex so that you last longer without even trying.
It involves a combination of techniques, learning knowledge, and following a specific approach that attacks premature ejaculation from all three angles; the physical, mental, and hormonal. I was able to cure my premature ejaculation problem in only 2 weeks and I never had a problem again.