Bob Wohlers has a great book you may want to check out, Live Long to Wander. I have no association with him, but do live offgrid in the woods and travel a lot solo in the Idaho Rockies. Even with my experience, I found a few gems and am recommending it to my friends. I can't agree more with his recommendation of taking a backcountry first aid course. Every other time I go in the backcountry I find someone is various states of vehicle or personal distress. In winter we average 2 recoveries a week.
Wohler has another book on raising vehicles and one coming out on self recovery, anxious to see the latter.
We live by the mantra that "Knowledge without mileage is useless" so practice, practice, practice.