Most erectile function in young men is caused by excessive self-gratification and not giving the body the time it needs to build up more semen. It takes time to make bullets guys. If you try to shoot them before your body has time to make them, nothing is going to come out, it will take a long time to dribble the blanks, and the pleasurable power that pushes them out will be significantly diminished. Give your body a lot more time in between ejaculations and not only will your erectile function be restored. You will also have more powerful ogasms, bigger loads and you will be able to shoot it further. Great sex is a matter of pacing yourself, like you would for an athletic performance. If you are young and you are experiencing erectile dysfunction, give your body a break and abstain from playing with yourself, spanking the monkey for 30 days. If you still have a problem getting an erection and your ogasm is not very intense, there may be a problem to worry about.
I have not studied the relationship between adrenal exhaustion and ogasm, but it would make sense that excessive self-gratification would put some stress on the adrenals.