Incubus,
Hang in there (oops sorry...). Uh, I'll restate that - Don't let depression rule your life. Try to find positive things to think about. There's more to life than having balls.
I would think that if you keep yourself sexually active, everything will continue to function as before. Now bear in mind that every man has a problem with erections at some point in his life. So if you have an occasional arousal problem, I wouldn't be too concerned about it.
Being a eunuch is a very special thing for special people.
However, I do agree that being castrated under duress was very wrong. (Not that I am recommending that you take any action concerning this....) You appear to have forgiven the person who did this - perhaps that is for the best as you don't need to be tomorrow's front page story in the National Enquirer.
I'd try to take it one day at a time and live each day of your life as your last. In other words, enjoy life and have as much fun as you can.
