Failure in life , isolated and depressed,nothing is going right,bedridden almost for 2 years.

Nothing has been going right since 2016. Before that, I was a good student. I have graduated in 2023 with good marks but still haven't found a job because of low marks in 12 th.i intend to study but is unable to do so. Is there still a chance for things to get better? Will I even get a job or not?or should try for business .