I don’t. I don’t work for a library, but judging from my local library branch, they don’t have the funding to retain competent IT staff. This isn’t about what they could or should do. It’s about not being an asshole to people that are already barely hanging on with what they have.
Check with your employer if they will help with your continued education somehow. My employer, for example, will reimburse some tuition costs if you get a degree while working there.
As a nurse you can continue up to and including a PhD. Or you can go to medical school and become an MD. There are many options. Try to find a few that sound interesting and learn more about them.
If you feel you have unused potential, maybe making a change in your career is just what you need. Even if you just look into what it would take, it could put things in perspective for you.