Feeling discouraged..

Part of me thinks it's because most jobs I've onlg stayed in for a year or two and then I've moved on, so maybe I'm not giving myself enough time in each area.

Bingo! A year is barely enough time to become competent. Expert takes at least two and more likely three years. Also nurses who work in ER and ICU know a lot about things, but not how to run an Ambco 2500 like school nurses do...we all have a skill set. Don't compare yourself to other people.

Finally, the best advice I ever got from a professor: Work is just work. You may never feel like this is what you were meant to do. But you spent a lot of money and time getting here and you have five years of experience!

If you're looking for meaning and fulfillment, enjoy your baby and volunteer someplace where they need you.

Here's a tip for you. Next time there's a pathological condition that you realize you don't know enough about, go on YouTube and watch a couple of short videos about it. There are some excellent resources on there that really help concepts get into your head. I recommend Khan Academy, Dr Been Medical Lectures, and then another user called Armundo Hasudungan. A quick 10 minute lecture can really help you grasp concepts much better than reading a book most of the time.

I agree with the previous posters. I think it may also help to identify your "thing". Not necessarily a nuring specialty, just something in the work you find enjoyable and you're kinda good at. Then watch a few videos, find nursing articles, spend a little extra time on it and become an expert on a small area. It's unrealistic to think you'll know all the answers, even within your specialty, but it may help your confidence to be knowledgeable in a small part of your work. Good luck!