Cummin in 20 seconds,pls help

It sounds like you might be just to anxious... try to relax around your girl. Give her an orgasm before you start to fuck and go for round 2... this will take the pressure off.

If you want you could try my method, but I don´t know if it will work for you since I was a premature ejaculator from the start before curing it. But if you are interested try doing this during sex:

1. I exhale and hold that exhale while I position my hips in posterior pelvic tilt (PPT).
2. When I am in PPT I force myself to exhale a bit more using my abs to push out any air left… after that I immediately feel the need to inhale (even more if I´m fucking) so I inhale BUT only into my chest, keeping my lower belly tucked in (leave it in the position it was after forcing the exhale with your abs).
3. Hold that chest inhale for a couple of seconds and tense the muscles in your lower back, then again force the exhale using your abs. Your lower stomach should now be tucked in even more (since it already was tucked in before).
4. Immediately inhale again into your chest and hold it again, then repeat step 3. Do this 3 or 4 times. Each time your lower belly should be more tucked in and your lower back muscles should tense up more after each inhale. By the way once you tense the lower back muscles you don´t let them loosen up again until this cycle is over.
5. After 3 or 4 times of this release everything, breathe normally and continue with your thing.

During this whole process you want to try and maintain your body in a PPT position as good as you can, so use your back to pound but keep your hips locked.

Let me know if it helped