Okay, I'm back...
Responding to this because I'm starting to see something here... you seem so much like me. I have in the past had trouble with finding a path in life because I have too many hobbies.
The first thing to do is find a way to decouple your income from your time, or find a way to work in something that is satisfying if you absolutely must work full time. My solution was to find work that I could do part-time only, in a field that satisfied at least a few of my needs (human contact, interest in science, problem solving). I work in the health field, which has very flexible hours. I figure that I can do anything for 20 hours a week or so. Later on, when I'm financially more independent and have passive income (read those threads) it'll be even easier.
Secondly, in your case, your health is so bad presently due to bad diet (I can recognize brainfog a mile away, it's all over your posts) that perhaps the organic farm setup would be the best. You'd be able to eat appropriately, and that should be the first priority. You'd have a chance to detox and clear your mind. You can do it for a year then go on tour. The problem is that we can't really have a conversation with the brainfog, and with the brainfog you are in no position to try to fix your life. You can't go to school with brainfog anyway and hope to succeed. And you can do online classes; anything is possible these days. If a Navy man could do courses while on a ship in the middle of the Indian Ocean, you can do the same while on an organic farm.
Third, this is where the 30 day trials and such come in. You don't need to do every hobby at once. You can try to rotate the hobbies. Why not do a thirty (or seven, if 30 is too daunting) day trial of narrowing your focus a little? I've taken time off from art to do music, for example, and sometimes take time off from music to do art. When I did art for a living, I did something else for my hobby.
You really might have ADHD. It's worth looking into. You don't really need to see anyone about it unless you want medicine, which you've indicated that you don't. If you do go to school, you can get this checked out at the school, most schools will do evaluation. I'm not medicated anymore and I'm coping... much better than before the dx. If all else fails, just google ADHD, you will pretty much know for youself if you have it or not, and read about the coping skills.
Before my ADHD was diagnosed, I had all kinds of circular thinking and negativity and all kinds of other issues. We really did used to be much the same.