unsure about applying to cambridge

hi! I'm going into year 13 and applying to do linguistics / eng lang and linguistics (dependent on uni). will be doing early applicants deadline anyway as my sixth form requires it, but i'm unsure whether to put in an application for cambridge. I visited on an open day in july and loved it, but part of me doubts whether im truly capable of it, or if i'll even stand out or have a strong enough application. My predicted alevels are A*AA/A*A*A (not confirmed yet) in sociology, history and eng lang which is what's required so that's good. My personal statement is pretty strong (I hope, I've done a lot of supracurricular stuff and extracurriculars thatI've linked back to my course, just working on perfecting the opening). I know everything is considered within context, but my gcses really worry me in this equation. i achieved 98887777776 which is okay, nothing amazing, and honestly for my school was pretty average. I could've done better as there were personal circumstances (mental health issues, family illness, undiagnosed autism) which made them tricky but as there's no record of it I'm worried that they'll just look unappealing. I worked my ass off throughout year 12 for my grades, and I plan on doing so throughout year 13. As i said, I really loved cambridge when i visited and it's 100% something I could see myself doing, I'm just very aware that there aren't many places available on the linguistics course and unsure if it's worth me applying.

Any help would be greatly appreciated!!!!