prevent premature ejaculation

Hello. There are several things that you can use for premature ejaculation prevention, but generally, I think that you gave an answer to the main question by yourself - why you are having problems with it. You are tensed, worried, you are not satisfied, and all of those things can cause a stress to you. Once you get rid of the stress, you will feel better and your problems with premature ejaculation will disappear. You can also try Kegel exercises, they are good and their aim is at strengthening the pelvic floor muscles. To complete it, you need to do it correctly. One approach to finding the muscle is by sitting on the toilet seat and urinating. Good luck!