I so wish I could actually spend three to four hours a day. If I were single and young and... instead I'm not young, I'm married, we've tons of things we have to do every day, I actually have a job.. etc. etc. etc. So I'm lucky if I can get half an hour of listening practice in. Now and then.
I did my hours with a full time job too but I basically just sit in my room all day watching my japanese escapism content. It's pretty lonely tbh. I assume you don't actually want to leave your family to learn japanese, and that's probably a good thing, so best to find a way to be comfortable with your situation. By the way I'm jealous of the younger people who claim they do 8 hours a day which I can't do. All perspective