Where do i study ap calculus AB? 😭

I'm a senior right now and my school is still on unit 2. I will be taking AP bio, chem, and calc ab this year. I'm almost done self studying bio and chem but I've barely finished unit 3 calc.

I've tried studying from the AP daily videos but found that they're too long so i started over from kham academy but started seeing problems that i haven't seen in the AP daily videos.

I'm completely bamboozled. Where do i study for this? 😭😭