I’ve heard people who went to college say that it changed their life, that they couldn’t imagine going someplace else, and they never would be where they are today had they not attended their alma mater.
But I’ve never heard someone look back and say that being rejected from a dream school ruined their life. Rejection happens, but people get over it and make college memories someplace else.
Keep that in mind if you find yourself worrying about whether or not your dream school will say yes.