Thanks for asking. I can understand your concern. It appears to be a problem of premature ejaculation. A condition where the threshold for ejaculation is low. There may not be any specific cause to it, but stress and anxiety happens to be major risk factors. Importantly, with suitable techniques you can learn to regulate and control your ejaculation. If required there are medications available for it as well.
Next Steps
Kindly consult with a sexologist in detail.
Health Tips
Don't worry. It is treatable.