@whiteyelloworange
I just put "unemployed due to caring responsibilities"
I will update cv and fill it out a bit more.
If this is the sort of thing you're writing, OP, this will be why you have had no interviews.
It makes you sound defeatist, downtrodden, passive and uninspiring.
And I bet that in reality you are none of those things.
It sounds as if you need to tailor your cover letters and CV a bit better, be positive, make use of all the voluntary work you have done. Make yourself sound interesting and appealing.
Try turning your caring experience it into a positive. Don't say "I was unemployed because I was caring for an elderly relative." Say
"I opted to take a career break to care for an elderly relative, which I found immensely rewarding. As a result of this experience, I have gained..." and then list the kinds of skills you have acquired, and how they might be of use in the role you are applying for.
My other advice would be keep volunteering. At least one day a week, no matter what it is, it's experience you can add to a CV and talk about in an interview. You can easily volunteer whilst looking for a job. Doesn't matter what you do - just do something!
I have just gone back into the workplace after 10+ years as a SAHM - I had however done loads of volunteer work and this was the difference between getting a job and not. You might not earn any money volunteering, but it tells a prospective employer that you have energy and enthusiasm and a desire to make a difference. You can reference the skills you are acquiring, the enthusiasm you have, the contribution you are making to a particular charity or community organisation. You will then come across as positive, enthusiastic and committed in a way you simply can't by writing a bland kind of 'I like being part of a team' statement.
Good luck!