Forget helping him ... And shame on your parents for condoning this abuse.
Save yourself.
If that means leaving him and home behind so be it.
Save yourself.
Don't wait until you're 33.5 years of age like I did.
Save yourself.
Get a professional counselor, a good support group/network, and get the heck out now.
Save yourself.
It isn't easy, but it is doable.
Save yourself.

,
Pfrog!