I set out to be a classical singer. I got a good degree in music and supplemented my singing efforts with teaching and a very little professional choral work (and produced two children, which gave me an excuse for the lack of professional success). When I hit 40 I suddenly realised I was no longer progressing slowly but surely along the path to become a professional singer, but with all the diversifying I'd done in the previous 15 years, I was doing very nicely as a support for other people's progress - teaching - both in school and privately including things like piano, recorder and theory, coaching, arranging, composing, accompanying, directing and conducting. To be a performer needs more than just being good, there's also a large amount of being in the right place at the right time. Let's face it, this guy is never never going to have a career as a performer, and if he's not in possession of the skills to take on the sort of peripheral work I mentioned (and now at 71, I love it) he needs to stop whinging about "sabotaging his career". He can pull his finger out and look for a job in a music shop or seek an apprenticeship (he's not too old) in repairing instruments or learn some theory and start to teach. The parents have at least, albeit late in the day, started dropping heavy hints about being a little more self-sufficient, but maybe they too need to realise there's no career to sabotage!