Hey there, you're going to be alright. I remember my classmates were all jerks - they didn't "get it". They never will, and they don't have to. Not everyone has to understand you - once I realized that, I felt so free. Being "me" is what allowed me to flourish creatively throughout high school. Then, when I graduated high school, I went to art college - and WOW, it was so amazing! Suddenly, I wasn't the weird one anymore! Guess what, everyone in art school is WEIRD! It's what makes us, well...us! I went from having not many friends in high school, to suddenly a ton of friends in college, because I had finally found my people. You will too! I think you may have a similar experience to this at the convention - and if you don't, that's ok! You'll try at the next one!
After I graduated college, I went on to work in animation. And guess what - everyone here is pretty weird too! We talk about cartoons every day, at work and off work! And many of us are furries. What I'm saying is, life gets pretty cool a few years later when you've found your "group"!
It's gonna get so much better for you. Trust me. When you're a little older, you're gonna look back on your early teen years and realize how cool (and I can tell you're very original!) you actually were. Everyone else who bullied you was just suffering from insecurity. Please remember this. You are awesome, and life's a journey - you can work through your anxieties. You got this!