I suggest the first decision you have to make is whether to stop or continue and then once you have made that decision you can decide on the best way forward.
Ultimately I think the decision is how much you want it. Or to put it another way which decision do you think you will regret more looking back in a few years' time -
1. Not having given it a go and being unhappy in your alternative career path.. .2. Have spent 10k and not having it work out for you?
For myself I moved to the US 2 years ago for an opportunity which I knew would be risky but which I thought I would regret not trying. It hasn't worked out and I am now looking to get back to Yorkshire - but I don't regret it because I had to give it a go at the time.
Hope this helps
ET