For my non traditionals how long did you guys spend on school work , studying during post bacc?

Hello, I was wondering with students that went through similar situation as me kinda how long you guys spend each day, week. I’m doing two years of pre reqs. Right now taking gen chem 1, principles bio 1, both with labs , stat , and physiology. Not too worried about stat and physiology studying wise. Its really bio and chem i feel like im really going to need to study a lot and stay at Si sessions.

Also working a part time EMT job, I can pick up shifts as I go which is nice so not fully committed schedule. Ideally two shifts per week (8 hours each shift so nothing crazy). For students who did something similar were you guys studying like crazy during the weekend?