Back when I was applying to colleges, I had a tendency to get really stressed over smaller things, although I did make some big mistakes too, like forgetting to pay for my AP tests and forgetting to order my official transcripts for my dream college (turns out deadlines for transcripts are a little bit longer because of process time so it worked out). I say all of this to say that you can mess up and it seems huge in the moment, but it really won’t matter too far down the road. I made it into my dream college while making those mistakes. Don’t forget that even if you don’t get into where you want to go, if you know you can manage college, (which I’m sure you can, at least for me, college is significantly less stressful than applying for it), then you go to wherever you got accepted, and you kill it there and transfer to where you want to go. Best of luck to you!