When I was 18 I pretty much did what you want to do. I spent 6 weeks at a time in the Blue Ridge Mts. At the end of 6 weeks we would go home for the weekend, then it was back to the woods, but I only took a bowie knife and a blanket. I did this for 2 years. There was a few things I really missed. A good sleeping bag, since it gets cold at night, salt,which I really craved, and extra clothes. Other than that it was the best and most peaceful time of my life. Now when I go camping , salt is the first thing I pack. I also had the benefit of having my husband with me, so we divided up the chores. I really can't recommend doing it the way I did it because it is dangerous but I know it can be done.