Everything may have gone exactly as you hoped, and you’re getting ready to go to your dream school. If so, congratulations! But there’s a really good chance it didn’t work that way, and you’re not going to a dream school. That's very normal; it has a lot more to do with the economics and logistics of admissions than you as a person. If you find an unhappy or unproductive adult and ask them what caused their problems, I guarantee they won’t say “I didn’t get into Stanford and my life has been miserable since that day. I only got a normal college degree, and my life is a waste.” It just doesn’t work that way. You’re going to be fine.
Where you're going has what you want
The odds are high that you're going to a "safety" school, and the odds are very high you're not going to your "dream" school. That's very normal; it has a lot more to do with the economics and logistics of admissions than you as a person. Just ask yourself how many times you've heard some sad person say "my problems all began when I graduated from a university that wasn't my dream school." You're going to be fine.
But there's a way to make sure you're going to be better than fine, but great. And that's to remind yourself that whatever it is you were looking for is available where you're going.
When you strip away the names and specifics but instead focus on the qualities that you were looking for, you can almost certainly find those qualities at the school you're going to attend.
Some advice about social media
I'm sure you've heard a thousand times that college admissions officers sometimes check on the social media posts of applicants. You've heard that you should be careful what you say--writers tell you not to post anything you wouldn't want your grandmother to see--but also that you should be sure to make your accomplishments clear. You've been told that colleges don't want to see photos of you with booze in your hand, but that they do want to see you're a well-rounded person with a social life. They want to see that you're engaged with your community, but that you don't get into hateful arguments or use poor judgement. You've been told all this already, and you don't need me to tell you again.
Whatever you were looking for, it's probably where you are
The odds are pretty good you're going to your "safety" school, and the odds are very high you're not going to your "dream" school. That's very normal; it has a lot more to do with the economics and logistics of admissions than you as a person. Just ask yourself how many times you've heard "my problems all began when I graduated from a university that wasn't my dream school." You're going to be fine.