2) I am so ready for a career change, thinking of going back to school. Problem is, I make a great salary and I would need that kind of salary should H ever decide to leave. I am scared to walk away from it for a job that allows more flexibility while I go to school. Truth is, if our M was a good one, I would make a plan and walk away from my job in a second. I am just scared to risk leaving and then being left to raise 2 boys without a secure job with salary and benefits. Or worse, having to fight H for our sons while in that predicament.
It sounds like you really need to work on making yourself happy. I've been living in limbo for the past 1.5 years, and if you work on it, I believe you can be happy whether you are married, single, or inbetween.
Instead of drastic choices, quitting your job and going back to school, esp. in today's economy, could you look into doing maybe one or 2 classes each semester? It would take you twice the time, but in 5 years time you'd still have the degree. Also, would give you a way to dip your toes in and see how school goes. Later on, when your life is calmer and more settled, you could always go full-time at that point and finish up quicker. Plus, most colleges 2 & 4 year ones have most of their classes online which would be good for a working person. Ultimately though you have to make the choice on what will make you happy.