I’m so scared that I won’t get into university

Like I’m sorry if I’m being dramatic over this since I’m literally in year 12 and don’t have to apply until like later this year but I’m genuinely worrying myself sick over this. I’m predicted A*A*A in my subjects and have my EPQ, work experience and like 3 other clubs within school and then I’ve read an egregious amount of books and podcasts, have been accepted onto a summer school with an MP, done online webinars, been to talks, and also started writing articles on my website since I’m wanting to apply to kings college for their pol itics (sorry for spacing that out I’m not actually discussing current worldwide affairs!!) and I know that my application is okay but I’m just so worried that I’m not doing enough or if something is going to go wrong and i genuinely haven’t gone to school without crying beforehand since literally like January 🙈 like im genuinely SO passionate about the subject itself so most of the work I do is just love of the game but im so worried that im just going to fail in life and end up stuck in the same town forever and never get into any of the fields that i want to get into 🙈. Anyways sorry if this is a whole waffle bye