Should I drop school or go through a year of pain?

So.. I've been worrying lately about school.

I'm not doing well. I'm not doing homework, assignments, assessments, I can't sleep well because of all this stress, which gives me no choice but to feel sleepy during class times which is even worse since I should be concentrating and paying attention to take in all the information.

I've acquired a qualification that's enough for me to into jobs but I still want to become a counselor or therapist because i love listening to people with problems and helping them out.

This seems impossible for me atm since I will need to gain the qualification this year. tbh, i really don't think i'll be able to pass exams this year for the qualifications at this rate. I don't think i'll be changing "my ways" any time soon either..

I really want to get a decent job that will help me through my life until I get married and all that. I just want to live in a happy family.

But having to go through all this stress is painful for me..

Something might help me realise what a sh** life i'm living but right now I'm just doing nothing to change myself.

I don't know anything about my class subjects anymore. I've already missed a lot of classes (due to sickness and lack of sleep) and I don't think I will be able to catch up any time soon since I was already lost in my classes even if I attended school.

Even if i do continue school, i'm going to fail the final exams and I won't be able to gain the qualification..Which means that it was a waste of a year..

Should I just try to "change my ways" and study (which is highly unlikely atm)

or should I just drop school, and see what happens? get a job? get some work experience? find out what i really want to do and get some motivation?