Talk to Sexologist on Hypersensitivity And Premature Ejaculation

I am 27 years old and weigh 70 kg. I started masturbating and watching pornography when I was 18 years old. However, I only did so occasionally, sometimes once or twice a week and other times once or twice a month.

I recently got married, and I have been experiencing premature ejaculation. During intercourse, I usually ejaculate within approximately 30 seconds of penetration. I also feel nervous, anxious, and sometimes suffocated during intimacy.

This problem is affecting my confidence and making me worried about my sexual performance.

I would like to know what might be causing this issue and whether my past masturbation or pornography habits could have contributed to it. What can I do to overcome premature ejaculation, improve my sexual stamina, and achieve a normal, healthy duration of intercourse? Are there any effective exercises, techniques, lifestyle changes, or medical treatments that could help me?