I'm with RichDog, but I suppose I've moved abroad too. But regardless of that, I didn't have a degree, like Housey has said. Just made some good strategic moves.
I went from '09 starting work in IT having changed careers, starting on 17k as Support analyst, to '10 - 26k moved to a field support engineer/managing clients (having made the most of training at the first place, and undertaking as much project work as I could), to going contract not long after, took me to 50k a year in a sys admin contract, to '11 when I moved to Basel for a SharePoint role, which took me to 120k, and since I've done a few different PM roles in this organisation in the Collaboration tools space, and have increased my rate since 2011 by about 60% so do pretty damn well.
It's not done for crass-ness at all, merely that if you make some good moves, it's possible quite easily ESPECIALLY without any responsibilities. I've got a wife, 3 kids and a dog!
I'd take that 40k, split it on 2 deposits for buy to let in an area that'll give you about 8-9% return. Get an agent to manage it, you'd not have to do anything and they'd take their 10%. It would put you in a great future position regardless and then you can work on your career.