Thank you for asking. I can understand the distress you are through. It can be a problem of premature ejaculation. It is completely curable. However, before concluding any diagnosis, a detailed account of history and course of problem is needed. Also one must study associated risk factors. Considering this, my suggestion would be that you should consult with a sexologist for further information.
Next Steps
Kindly consult with a sexologist.
Health Tips
Don't worry. It is treatable.