The problem in the UK is that uni and college are that expensive. 30k pounds for a degree is ridicilous. I was in the same situation as you, wondering what to do, get an extra master degree or go to work with my bachelor degree.
I can study for around 1000€ a year, which is 2000 in total for the master degree giving the higher pay I would get with a job, it's well worth it...
But investing 30k pounds is a lot of money... Never thought about doing a apprenticeship? I know virgin atlantic did one for technical staff.
This is really a though one for me, I wouldn't know what to do. Try to find a decent job and see how it fits you. If you don't like it you still can go to uni....
Good luck!