Nursery funding 30 hours come September

Does anyone have any info/help. My child is 2 in June, and in Sept he’s entitled to 30 hours funding (he currently has 15 hours). The problem is come September I am doing a 1 year course to become a teacher so it means I’m not “working” so not entitled to the 30 hours even tho I’ll be in a school Monday-Friday but I’m classes as a student I’m not sure how to get around it, I won’t be able to afford his nursery Monday-Friday 8-4. And I’m not sure how I’m going to fit in working whilst in a school 5 days a week. (I’m a single parent, dad does work but doesn’t financially provide a penny).