You mentioned that you tend to discharge early, which means you may have premature ejaculation (premature ejaculation), a relatively common condition that affects 1 in 3 men. This has nothing to do with the length of your penis. The average time for ejaculation or discharge is 3-6 minutes from the start of intercourse. If your time is significantly lower than this, then you are likely to have premature ejaculation. There are a few home remedies you can try for this such as focussing on distracting thoughts before reaching orgasm, or gently squeezing the head of your penis just prior to ejaculating.