It was a year before I met my first "real live vegan" and it's been awhile since I've hung out with one (although I'm hanging out with one tomorrow as it was!).
Getting picked on and feeling isolated is part of it, don't worry about, I think we have all gone through it. It makes you stronger, once you here people making the same arguments over and over about how "veganism is stupid" and how much they love "dead animals", you'll just get bored of it rather than hurt.
I know it's a cliche, but if someone is picking on you give them the "you've got to be kidding me" look and ignore them. Body language can be so much more effective than telling them that they are wrong.
And you'll meet plenty of vegans!! The first few months of me being a vegan were totally isolated, I didn't even have any vegan friends online! But once you friend a few on facebook or something, they all come running!
If you're on facebook, look me up and I'll send some friend requests for you from other vegans. There are a lot of us out there, we're just spread far apart!