First of all, we need to know the reason behind premature ejaculation as there are many factors that affect a man's performance. Premature ejaculation is seen in more than 70% of the patients suffering from erectile dysfunction. It is also caused by stress, depression, anxiety. The last and the most common factor is dependence on adult content for masturbation or masturbating too frequently and using adult videos or images as the only source of sexual stimulus.
If a person experiences premature ejaculation due to erectile dysfunction then it is often recommended to see a good sexologist doctor. As in most cases, PE is also solved along with ED.
If you are too stressed or you face anxiety issues then it is nothing but a performance anxiety issue which can be cured by living a healthy lifestyle along with consuming good healthy food. Stop drinking and smoking and reduce your workload. If it has affected you so much that you are unable to perform your day to day work, can't focus or feel lazy, it is good if you see an expert and get a permanent cure for Premature Ejaculation with Ayurveda (herbal) medications that have no side effects at all.
Only you can control your brain! If you feel the urge to masturbate or watch porn, do something different like workout, talk to a friend, go for a run, divert your mind, meditate, etc. Slowly and gradually you will start to see improvement. You can also do KEGEL exercises to get control over your ejaculation and increase your PC muscles. It also helps in erectile dysfunction.