Hi! You know, to give you the best answer, I think I should ask you a few questions first that will help define the problem and the situation.
First, you wrote about a testosterone booster and vitamins. Did you actually discuss the problem with your doctor and have hormone and nutritional testing done? If not, would you be willing to?
Have you tried PDE-5 inhibitors, like Viagra?
Do you really believe you just "wore out"? What does that mean? Is there a lot of anxiety? Are there some other things going on that might be causing this?
Do you masturbate on your own? If so, has this also ceased?
Any extra information that will help, feel free to share.