/sci/ - Science & Math

I am trying to manage my time effectively for maximum output. I have 5 subjects I am trying to better myself in: art, A&P, chem, writing. Corona has me jobless, what’s the maximum efficiency I can achieve in a month without drugs and how? 1 hour each daily, 3 hours each alternating daily, or is there a better method because I always get stuck in analysis paralysis and end up doing only what I need for my classes.
Is there any science to it? How do I maximize my “mental gains” in all these fields? I can enter “the zone” easily if I have a plan.
Here’s the run down:
>what is the most efficient study pattern?
>what is the science behind maximizing learning gains?
>let’s assume I want to maximize them all and I don’t care about my social life