School and baby

My son is 11 weeks old and I’m going to start online school in a couple days to become a vet tech. My husband works full time third shift at a factory, so that means I have my baby all to myself without help. How am I suppose to study? He doesn’t take naps during the day at all and he sleeps during the night but I also need to sleep. I’m afraid I’m going to fail school cause I’m not going to be able to concentrate.

Any tips? Advice? Thanks (: