Just to add in again, what almost everyone here is saying is right - hospital is not a magic fix, recovery will take a huge aount of self involvement. Also while in hospital you may be forced to take medication which you say you don't want.
Also there is generally a structure to being admitted, it is very rare to be admitted from a GP, a bit more common to be admitted from A and E but still not common, there is a hierarchy of treatment levels to try first which goes like:
GP>CMHT>Crisis line>HTT>Day hospital>Inpatient.
From the sound of your posts it feels like you've only ever seen a GP. . .