@Onatree
Is there an undiagnosed condition? Whether learning difficulties or MH?
Is there a will to plan the next couple years to slowly gather qualifications?
To self refer for free IAPTs MH support to get to the root of the cause here?
To potentially turn life around by say 2024?
I thought this too, reading the first post.
OP my life hasn't gone according to plan. I sort of understand what you mean. I'm not capable, for health reasons, of living the life I'd planned to live. I've had to accept that I can't do my chosen job. I unfortunately found myself in an abusive relationship (long over, don't worry!) and the end result of that was it cost me my chance to have children. So that was a hard thing to accept. Another of my main things was I wanted to get married (since forever, in a general, life's dream, sort of way, before I'd even had a boyfriend) and for various reasons that isn't an option any more. It's frustrating at times. I wouldn't describe myself as a failure though, that's very negative. I'm doing the best I can to make a good life for myself and that's a positive thing. All we can do is make the most of whatever situation we find ourselves in, try to improve our character flaws (we all have some, none of us are perfect!) and make plans for the future, but be prepared to adapt them and change them if things don't work out.
You need to find your strengths OP, everyone has some. Maybe they won't be related to work and work will never be your thing. But there will be something you're good at which you can incorporate into your life to make it better, more fun etc. You've got to be true to yourself. We're not robots and the exact same life doesn't suit all of us.
If scraping by in temporary or low key jobs is the best you can do then that's ok, find a way to make life work under those circumstances. If you get fired from long term placements perhaps short term placements would be better for you, especially if being fired is affecting your self esteem.
Maybe you need some organizational strategies to function better at work. Have you tried shadowing an organised colleague for the day, following their routine on arrival and in breaks, as well as after classes until they leave and asking about what prep they do at home for work? It might give you an insight into how they manage to do it and what you'd need to change in your day to be more like them.