Advice needed. Did you go through this when you were 19 or early 20s?

I'm 19. I live with my mother who has mental health issues. She's severely depressed. Talks about how to wants to just "check out". She has 5 other kids (much older than me) that are well off, with good jobs. I'm struggling financially, I want to go back to college and finish my schooling to get my cosmetology license (100 hrs away) but I have to pay off alot of money to graduate, money that I don't have. Right now my electricity is off and I just don't know what to Do! I'm so lost and confused.. I feel like I've failed my mother by not having a good paying job. I've been working since I was 15. She hasn't had a job in 2 years. Did you go through this confusion at my age? Not knowing what to do in life? I have no guidance or help. Please. Does anyone have some advice?