[UK] First-Class Psychology graduate struggling to find work

Hi, I'm 36F, and this year I've graduated with First-Class Honours in BSc Forensic Psychology (I was a mature student).

I've been actively looking for jobs (not just psych-related), but there seems to be nothing out there. I've been applying for roles in assistant psychology, research assistant, UX research (entry-level), HR, sales, etc... But it's impossible to even get past the application. No one is interested, and all of the roles that were meant for graduates are routinely given to people with prior experience. The only options I'm getting are SEMH TA's, but I would not be able to survive on £90-100 p/d that is only paid during term time...

I am not sure what to do anymore. It seems like such a great achievement getting a First in Psych, but it feels like it was all for nothing. I'm not sure whether to go into further education, ot to keep on trying.... Any help and/ or advice will be much appreciated.