Hi Oompa,
I don't know if it's mid-life crisis or not but I'm going through something similar as far as wanting to just quit and run away. I've "daydreamed" about running off and starting over but like many of us, we have responsibilities. For me, I have 2 children that depend on me and I think about what it would do to them if I did run away. Besides, running away won't solve my problem because I'll still have the lonely, angry feelings towards some of my situational things.
What helps me is getting away for a bit like camping. I've camped by myself (of course safe places and basically in my car with locked doors) for a weekend. It's refreshing to me. Another thing I do is "take off" for a day just hiking through the woods with my Kasey Girl (German Shepherd). I feel refreshed.
When coming out of a high controlled religion, you do lose a lot but it depends on how you handle the stress of it all that will make or break you (IMO). For me, I not only lost my JW friends and family but I lost my husband within a short period of time frame. I won't allow myself to stay idle too long because then I will start to think about what I lost rather than what I've gained. Sure, I slip back into my little hole for a bit (and I give myself that permission) but I make myself to pull out or things can really get out of hand.
Can you "get away" even for a day? Getting out doors (to me) is refreshing and energizing, is this posible for you?
At any rate, hang in there.