I'm so sorry you are having to deal with this, brainmelt. It might take awhile, but you will be o.k. I know it's a lot to take in, and if you have family in, it's certainly harder. Please take a deep breath and slow down. You don't have to do anything right now as no one is bothering you (hopefully it will stay that way for a while). It sounds like your husband is fine with the way things are, so you at least don't have that added stress. Please get outside every day and do something physical, even if it's just walking the kids. It really helps to clear the mind.
Keep doing your research SLOWLY, taking it all in. One point at a time. Do some reading on combatting cults, I'm certain others here will recommend some good books. Have you been to jwfacts? Great resource. See if you can obtain a copy of Ray Franz book, Crisis of Conscience. Don't speak to anyone just yet about what you are learning. You are simply not ready to deal with any fallout. With time, you will be strong enough, and will have all your facts. When you decide to drop nuggets, make sure it is done with CAUTION, AND VERY SLOWLY.
I used to feel the guilt from missing meetings, etc. I think most did. You are programmed to feel that way, but as you learn more about TTATT, it will go away. You will realize you don't want to listen to the twisted teachings anymore, and why on earth would you want to spread them to others? But it does take time to break out of cult mode. Please find some things you enjoy doing to occupy your time and thoughts. It will help to push the wt from your mind so often. I wish you all the best, brainmelt. Hugs to you.