What can I do as a single mother ?

I’m single famale mother (37) with a 7 daughter . I do a day job that just lets me scrape by. I’m ambitious , I truly am. I barely gathering into my pension pot. I have a background in BSC. Economics and statistics and MSC in accounting and finance . Every dime I make is paid towards rent and car basics . I don’t shop or buy brand new stuff. No travels yet. I do as much as I can taking my daughter to parks and places outside of my town 4-6 hrs drives so she can see as much as possible .
I need advice . I work in care, making £1200 a month doing the hrs I can. I want to work in finance but don’t know where to start.
It’s been 5 years already and I feel stuck in a way.
Should I start my business ?
I don’t think employment is for me
Should I work in finance ? Where do I begin ?
I just don’t know and I’m not allowed to breakdown. I just can’t ?