Yes, you will get hired in Special Ed somewhere. Maybe not the best districts, but not the worst, either.
So...I went ahead and bought a bunch of used textbooks and read them. Did your program include a reading list at all? If so, you might want to just buy the texts or see if you can get them from the library.
Education has also been a hobby of mine, so I've read lots of articles over the years. I might not be a great example of really switching careers. I'm also a really good test taker, so I have passed everything the first time (and I am certified in three areas). Also, as part of my program, I needed sub hours or para (IA) hours. I went the IA route and was in a school for a year while I took my tests. This was the best thing I did. Will you have student teaching or some sort of school hours as part of your requirement? My school was amazing and let me teach classes, sub when needed, and observe master teachers during my time there.
If you have multi-subject to study for you can use Khan Academy for math and/or science and Crash Course for history and/or science.
I will say your psychology background will probably help you. In reg ed, but especially special ed., behaviors can be what keep kiddos from learning. If you can help them with behaviors, you can usually get them to learn. I was in functional skills last year (moderate to severe learning disabilities) and having a background in psychology was extremely helpful. Are we inadvertently reinforcing a behavior? How can we replace the behavior with a preferred one? It's really quite fun especially when you get to see results.
Let me know if you have any more questions!