I can’t lock in

I’ve been saying I’ll lock in the entire semester and I never once did. Also found out my af mark and bio mark dropped. How does one go from a 95 in 11U functions to an 83 in 12U af and from a 97 in 11U bio to an 82 in 12U bio. I’ve lost hope at this point. Goodbye Mac health sci (not like I was gonna get in anyways but a kid can dream💔). Goodbye mac life sci too. Idk what I’m doing with my life. After getting those updated marks I literally have absolutely no motivation to lock in bc my marks will barely change atp. Someone tell me high school doesn’t matter in the long run and make me feel better pls💔💔💔 I’m acc crashing out and I think I’m going insane. Pls tell me I’m not alone. The one year I need to lock in I’m doing the worse I’ve ever done and worse than I ever thought was possible.