>>/522691/
> I suspect you'd need a much stronger case to even bother.
I am not trying to be mean, but this is my view. If you feel that you're life has gone nowhere and in the immediate future is going to remain the same, then that might be enough. The issue is going to get the medical documentation that you have significant mental issue, that has been treated by medical professionals and you are still impacted by those mental concerns daily. Such that you still feel like a loser that you were X years/months/days ago. That is what they want to hear and see with medical evidence backing it up.
You would need to be self-defeating and show that it has significantly limited your potential, especially your ability to work. You need day-to-day assistance with tasks, otherwise you stay at home in your room and do nothing with a limited enjoyment of life.
NEETs here have moved on from the DSP and then back again. It's not a single track but proving you warrant the DSP is not the best process as it is very stressful dealing with Cenno and being upfront about your problem makes it worse. I have had to do it once and found it very confronting, even when the people overall were okay to deal with.