Hopefully the universities will reply. Seeing as you live in Cardiff, have you looked into Plymouth? (It's not too far from you). They have a really good course called Paramedic Practitioner. I live in Plymouth but wont be applying there as I want to move away from home!
Sounds great, being a full time carer. That's what I'll do for a year If I'm unsuccessful this year -_-
Erm I have a bit of work experience. I'm a first aider with St John too, I've done a weeks work in Minor Injuries and an ongoing placement on an elderly patient ward. Hopefully this'll be enough...
I'm assuming you're a mature candidate?