I realise it’s late and this may not get any responses but I’m writing it now while it’s all in my head in some sort of order.
I’m 30 something. 2 DC - both will be secondary age from September. No partner. I’ve jumped from job to job ever since leaving school. Retail type stuff all min wage. No qualifications beyond GCSE other than a now expired STEM access certificate that I did several years ago. I was about 18 months into being a self employed cleaner when covid hit and I’ve been unemployed since March. This will be the case until September at least as DC2 has SEN and can’t be left with older sibling. I’ve been looking for online/work from home jobs but as I have no experience in anything relevant I’m struggling. I really am not good at self promotion so selling myself to an employer isn’t my strong point. I’ve realised I am pretty restricted in terms of earning potential and haven’t made any improvement in my life in the 15 years since I left school. I’ve been considering doing an OU degree. But I have no idea what would be worth doing. I live in a small town and have absolutely no desire to commute into the city. I did it years ago and hated it. So any jobs I would be considering would be local or, ideally, home based. I’m currently hearing a lot of “home working is the future”. If that’s true I need to be employable.
Is there any point doing a degree that will take 3/6 years or longer at my age?
Am I kidding myself that I could do a degree? I did really well in the Access course but I realise a degree is a different kettle of fish.
If it’s a goer then what degree? 
what are the stable, well paying jobs?
Probably relevant- I suffer from a serious lack of self belief and have talked myself out of so many things over the years. I never know whether my concerns are me being realistic or just too afraid of failure.
Any advice welcome.