Hey! Welcome to hell man
. Sounds like you have probably have MPB hairloss. On the upside you joining a pretty big club, a big depressing club
. Also scratching your hair probably isn't making it fall out by the way, the itching is probably follicle irritation caused by DHT, the testosterone derivative thaaaat causes hair-loss.
There isn't too much you can do except these things.
1. get on Propecia,it reduces the DHT in your body (look up generic proscar, same drug different dose and much cheaper, you just gotta cut the pill yourself, no biggie)
2. Nizoral, they say it helps, so what the hell, why not use it? I know I do.
3. Minoxidil, AKA rogain, it smells like crap, is annoying to apply, makes your head ichy, and will probably ramp up your dandruff, and causes initial shedding....BUT it can help. I know it helps me, I use it solely on my hairline, I let propecia (generic proscar) deal with my crown.
4. Smile, won't help with the hair, but life is short
only thing worse than hair loss is hair loss and being bummed and sad.
p.s. don't go for a hair transplant. You end up with a big scar and your hair will still look like crap
but I'm only 21, so what do I know......