Hi Thank you for asking HCM I have gone through your query.You should get rid off anxiety including performance anxiety and stress as those are main offenders for this.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 ejuaculation. If all these not helping then you can approach a psychiatrist for behavioral therapy and medicinal management like anti depressants. SSRIs like Paroxetine and Dapoxetine are usually prescribed drugs.You can exercise daily and have a nutritious food to have good libido.Sea foods eggs dairy products all help in increasing libido.Hope this may help you. Let me know if you have any further query.