How to survive a 10 period day

I’ve ran into a real crisis if anyone knows what I mean. My school runs on a 10 period schedule, where we have 9 40 minutes periods everyday and 1 30 minute period for lunch. I plan to take 3 AP classes, all of which have been recommended to me. So far, here are my classes (all are 40 minutes long)
AP US History
AP Comp Sci A
AP Lang
H Precalc
H Chemistry
H Spanish III
Chamber Orchestra
2D Design
Does anyone have advice regarding how to manage workload, or get the full value out of the class?

My son had some tough schedules but it comes down to time management. Most high school kids eat in 10 minutes… Lol… He decided he wanted more free time at home. Him and some friends went to the library (not all lunch periods but a lot of them) and studied. Also he got done chemistry quickly so he used the extra time on something else. He took a short break coming home then finished studying… Then played video games online… Lol…