TweetWell first off welcome to the board.
Dude i know what you mean about people not supporting you especially the parents. My mother is the worst she gets all pissed off at me saying that i am getting too big. She really gets grossed out when i flex my traps. And my dad, he told me "you will never be as big as you want to be" I was thinking WTF this is my dad. But then i thought fuck it, i will prove him wrong.
On the other hand, I rteally appreciate the people that do support me 100%. It is so nice. Besides that and what my dad said it keeps me going.
As far as dealing with it, people may come around, maybe because of the changes in your physique and maybe cause they will see your drive and determination. Just don't let the negatives get to you. Use it to your benefit to drive you more.
Good Luck brother.