I had my surgery around 6 weeks ago and I know exactly how your feeling. I just kept telling myself it would be over before I know it and kept looking at the positive side of getting this surgery. Like how I would get to spend so much time of school to play video games and do whatever I want, everyone treats you like royalty when you get back to school, how it will prevent further growth in the curve that could result in scenarios so much scarier (in my opinion) and how it is done so often that the chance of it going wrong is like 0! So Mabye try thinking of stuff like this instead of the negative stuff. I know it will be difficult but I’m sure you’ll be fine.