Chances I get rescinded?

Hey guys, I recently (by some miracle) got admitted to CAS off of the waitlist. Wasn’t anticipating this at all and had already paid my enrollment deposit at my state U, and as a result I felt pretty comfortable letting my second semester grades slip. I ended up receiving 2 or 3 Bs (not sure about one class yet), 2 or 3 Cs, and one D in Calc BC. To be fair, my schedule is pretty tough with four APs and no electives, and I am majoring in english, so a bad grade in calc may be overlooked. The only thing I am worried about is the fact that I really shouldn’t have been admitted in the first place (3.2 UW GPA, no ECs other than 4 years of rowing year-round). My only real redeeming quality was my SAT score (2370). So since I hardly scraped in, I feel like they wouldn’t be so hesitant to rescind me. Pls comfort me

Also, if it’s relevant, I am paying in full with no FA.