Can someone just explain to me what the F*** is going on?

"On Monday night I OD on sleeping pills and alcohol and the next morning had to be taken to hospital. It was a suicide attempt.

I stayed overnight so they could keep an eye on me and saw a psychiatrist on Wednesday. I was forced to tell them all about my self-harm, insomnia and hearing nasty voices and they have diagnosed me with Clinical Depression.

The psychiatrist threatened to have me sectioned to an adolescent mental hospital (Leigh House) because I wouldn’t promise her that I would not try to kill myself again; I was already formulating a plan. So she made me promise that I would stay safe until Tomorrow,because tomorrow I’m going to see another child psychologist.

I don’t know what this one is going to be doing with me or why I am going. I’ll try it, but deep down I know it’s not going to work. I still want to kill myself more than ever. They also say I can’t go to Leigh House because it’s full, so I’d have to go to the Priory instead in Maidenhead? Is the Priory different to the NHS? I’m really confussed and scared right now. Nothing they do is working; the Prozac isn’t working and might actually make me worse!

Can someone just explain to me what the F*** is going on?
Maidenhead is miles and miles away from where I live so no-one could visit me… also, Leigh House only accept 20 kids and apparently 10 of those would be anorexic girls. I don’t think that’s the place for me…
I’m 15-years-old… I’m not sure if it’s "rare" for young adults to get major depression or if it’s reasonably common, all I know is that the shit won’t stop untill I’m either dead or ‘back to normal’, and I don’t possibly see how on earth I can ever be who I used to be."

Source: http://insomniacurehomeremedy.com/1955/i-need-some-advice-theyre-saying-its-clinical-depression/