I have a bio lecture today from 10am-11:20am, but after that I will study for my bio lab with the rest of my time with obvious breaks inbetween.

My goal is to study like this:
study for 1 hour then take a 15 minute break. If I find myself getting tired I'll just have a 15 minute nap for my break. I'll keep track of how many 1 hour study sessions I can get in. I'll be aiming for 7 as my goal.

I'll be back this evening to update how things went