I became a vegetarian when I was 11 and from that time until I went to college at 18 were the most challenging years to maintain my choice. I held my ground against the pressures from family and friends, though, and you can too. Trust me, it gets a bit easier after you turn 18 or so - especially if you're attending college or leaving home soon (if you haven't already). As I entered my 20s, I started becoming exposed to all kinds of people with different lifestyles, eating patterns, religions, moral codes, and my choice to become a vegetarian didn't seem so strange anymore. It seems like you've weathered the hardest years - I think it will only get easier and easier for you from here now that you're an adult.