Hi Thank you for asking HCM I have gone through your query.It is usual to get a fast ejaculation while masterbation. Ejaculation during sleep is a normal process.When the semen is full on storage it happens.If you getting early ejaculation while normal sexual activity then you can try following.You can do squeeze and stop technique.You can stimulate your partner to maximum before getting yourself stimulated.You can deviate your thought to something nonsexual when you about to near ejaculation.You can put on a condom or condom with anesthetic which will decrease the excessive stimulation on penis and there by prevent premature ejaculation.If all these not helping then you can approach a Psychiatrist for behavioral therapy and medicinal management like antidepressants. SSRIs like Paroxetine or Dapoxetine are usually prescribed drugs.Hope this may help you. Let me know if you have any further query.