coupla ideas..

Take a resume around and introduce yourself at EVERY museum you can find, even ones that aren't hiring. An opening can come up at a strange time and you may be fresh in their minds. And museums and other places RUN by historians are the best places to turn into a decently paid professional.

Many of us got 10 misspent years of early adulthood not knowing life is not a one-shot test. You can have multiple shots at opportunities. So if you see a place or a job you really want, let them tell you no, but then follow up with a note saying how much you really want it, and call or drop by (very briefly) to say it again. Yes, this is considered pushy by teachers and other nice people, but many many professions expect this sort of determination before they see you rising out of the pile. Again, only for something you're really crazy about.

If your first love is really music, visit clubs, venues, concert halls and apply there, whether or not they're hiring. If you're going to do ick work, do it in the right industry and it could lead somewhere. Maybe into performance stuff, maybe you'll find you have a talent for running a joint. Half the people in show business started out in ick work but rubbing shoulders with the right people.

Good luck and don't take any 'no's' personally.