Taking the leap of faith just because the grass seems greener on the other side, that seems risky alright... even more considering you'll be shutting close all the doors behind you.

Moving out is a huge task to take for a person who's got his/her mental health in good nick. For someone who's battling a mental illness, I wouldn't know how to put it.

And yes, failing is a possibility you're gonna have to be able to deal with, should it happen.

You have a lot of doubts and it seems to me that you are pretty much answering your own questions.

If you have no one to help you out, no family member to take you in at least until you get back on your feet, then you'd have to do it all on your own.

The questions to ask yourself aren't even "Can I do it?" or "Am I strong enough?". The financial part is where it hurts.

You could start by making a list of what you're going to need in order to break free from this situation.

Top of the list is a job, as others already mentioned. Do you have any work experience at all? Can you get any job, anywhere?

Then after that, comes the roof over your head and basic furnishings (sofa, bed, table and chairs, cooker, etc). And with that, all other expenses involved: rent, home heating fuel, energy, water, etc... and let's not forget food and all of the other things needed in a house.

If you get a job, would your income be enough to pay the rent and all of the other expenses?

Im sorry, I'm not trying to put you off or anything, but that's the reality of it.

I'm also sorry that I don't have a solution for you. The only solution I see is that you should start by finding yourself a job and saving money. That's how you'll get yourself the independence you need.