Your husband sounds incredibly selfish. He either doesn't or does want you to have a job / career for HIM and only him. When it made life harder for him, he made it impossible to work. Now that he wants to start a business and you need the income, hr's demanding you not only get a job, but develop a full blown career.
Whatever you do, do it for your own sake and not that selfish git's sake.
For myself, I had to try to start again in my early 50s. I was self employed doing audio typing for awhile, the pay is not great though. I then got work as admin for a plumbing company, moved to another one, and then used this "customer facing experience" (which you could get from doing volunteer work) to get a job in an insurance call centre. I've since been promoted and have confidence that I will get further promotions, I have quite accidentally found my career, later in life.
Look at CV building opportunities. Small charities such as children's nurseries are desperate for capable volunteers to do a raft of jobs that in the employed sector would be tricky to get into, and can give you the required experience.
Look at
Young Carers groups (looking for organisers, supervisors, drivers to collect and return children);
community children's nurseries (assisting with employment procedures such as interviews, organising and running fundraising events, tidy ups);
open heritage days (a lot of venues open that don't normally open and so need as hoc volunteers);
electoral staff for voting;
schools/colleges/universities needing exam invigilators;
infant/ primary schools needing volunteers to read with children;
mental health support groups (in my old area had a garden specifically run to enable those with MH problems to spend time there helping out as part of therapy / and another was a small cafe run in the same ideas) , etc
There are so many different things out there if you want to get experience through volunteering, don't just look at the obvious choices, dog a little deeper and find the small but worthwhile community charities. You might even find something you're passionate about in the process!