Panic attacks

Helloooo!
So today was not a good day. I got several red slips (notifications they give us at school if we haven't handed in homework), and got penalised by my teacher about it. And, to top it all off, I had a panic attack this afternoon. I was walking back from school and I was thinking my next counselling session on Thursday, and it just came along. I couldn't breathe and I couldn't see a thing. I had to walk to the side of the street and lean against a wall for about 2 minutes until it was all over. I hated this one especially because it was in public and because I was 3 weeks clear of having a panic attack! I've been trying to be a lot more happy about my decisions and my friends recently so panic attacks won't come along, but there have been a few annoying people (mostly a girl who I'll call MBM, I'll have to write a whole other post about that, I've got a lot to say about her) who have completely ruined my hopes of a panic-free month. Do you, my few readers, have any problems like this? Any panicky moments that you can't ever seem to explain? I'm always here for all of you, no matter who you are. Despite the fact I may be a bit odd, I still can give good and normal advice. Believe it or not, I have had quite a lot of experience in things to teenager should have to deal with.
If you read this, thank you. You have made me feel so much better :)
Thanks,
Anonymous Schanonoymous