Is going back to study an option? I first went to University when I was fifty-two and straight to a one year masters degree. I had to provide some evidence that I could study at that level, psychology may require more technical background or statistics, and perhaps it is possible to gain those. I worked two days a week to pay the rent, and possibly doing part-time over two years might be a better option.
I don't think it is an option for me here in Finland, but I am going to look into if there is something "adjacent" that might be interesting to do. It has been a long time since I have studied though!
That sounds a good idea. There are lots of online/remote/blended courses from all over the world. I'm sure UK universities would be quite happy to take your money.
Yeah, there's a lot to consider, especially because you have a family. I was thinking that this was a regret that doesn't need to be, though.