I found out yesterday that they can't increase my work hours, or increase my salary... it comes from a government grant (the company's not-for-profit), and there are no other funds to do it.
This means I'll have to do something I haven't succeeded in until now: find a second job to supplement my income.
It isn't due to pride... I'd be happy to work as a cashier at a music/book/video store. The problem is that I have a lot of degrees and skills on my resumé... many potential employers see me as overqualified.