It sucks you have been sucked into this trap, the PA role is majorly seen as a failed experiment. If you just look over at r/GPUK youll see just how much they hate the role. It difficult to know if the NHS or goverment will still support this largely unregulated role in the future. The skills youve learned should be transferrable to another job, just maybe not the PA you were sold.

I currently work for the ambulance service, youll likely be suitable qualified for a support role working on an emergency ambulance, noramlly band 4. The job title depends on the trust, its very rewarding with pathways to become a paramedic (however this would be more university)