Sure it’s common when you consider the number of kids who graduate hs each year. Your difference is you’re thinking of applying to some very competitive colleges.
What major?
A lot of folks will say, WTH, X didn’t and he got into some college. Or he got into Duke, etc. But you don’t know what tipped those into the yes pile. Take a breath and see what’s feasible. On another thread, I said senior math isn’t mandatory. But that kid was humanities and would complete AP calc AB in junior year.