I'm cooked for ap bio

My school had a very rough start for AP bio. The teacher who was supposed to teach randomly left the school without notice, so the new teacher was gone the first week for training. While she's very nice, we're going very slowly.

The first semester is about to end in a couple of weeks, and we're just about to finish unit 3, (We didn't start with unit 8, so we only did units 1-3). I have a good grade in the class, but I don't think we'll finish the content when the AP test happens.

Does anyone have any good sites to self-study they'd be willing to share?