I was in pretty much the same boat as you after taking time out with my children.
I enrolled first on a bookkeeping course, that was just for a few weeks to see if it was my king of thing. I really enjoyed it so enrolled on AAT level 2.
There was a real mix of people- all ages and some in work and some not.
I kept applying for jobs and after a little while I got an admin role with some accountancy. I was only looking for part time- I think finding a full time role would have been easier.
I went in to do levels 3 and 4 and part way through level 4 I landed an Accounts assistant role in industry.
That was 6 years ago and I am now a Finance Manager, earning a hell of a lot more than I ever thought I would.
For some roles AAT will not be considered and you have to be chartered. I’m in my 40s and frankly cannot be bothered to do any more exams. However, for me, AAT has worked out really well.
if it’s what you want to do I would enroll on AAT and apply for admin / finance assistant / purchase ledger roles. If you do AAT you get some exemptions if you do want to go on and do further exams.
if you want to work in practice, you could approach local firms and see if they would consider taking you on with study support.
And you do not have to be a maths whizz. You do need to be able to understand numbers but you don’t need to be able to solve complex, or even simple, problems in your head. That’s what calculators are for! It’s sometimes more about rules and processes.
Good luck!