My first reaction is similar to that of #3. You rattle off many of the popular lines of work and then go on to say that you don't like them. No one said you had to like work and many people do it only because there is a paycheck at the end of the day. I've read once that 65% of Americans do not enjoy, or like, their jobs. You may well belong to that 65% majority.
Asking total strangers to suggest work you may enjoy also doesn't seem a constructive way to search for careers. After all we don't know you and have no clue about what you may like, may not like and may be good at. This is what career counselling back in college would have been for.
Having said all that, let me mention one which at least you may be good at. If I understand you correctly you make money betting on the spread among bookies. This tells me that you are good with probability which probably means you are good in math. This is a skill. Most people couldn't calculate accurate probability to save their lives. You'd probably enjoy and be good at jobs where you put this skill to use. Like quantitative analysis which is another way of saying using mathematical analysis to make money. They include math and physics PhDs who work for investment banks. They design derivatives that are traded on markets. You should look into what types of specific jobs and careers are available.
I see that you want to be your own boss but that may have to wait. These kinds of jobs aren't conducive to being self employed. But after you have saved up a good chunk of capital, you can then invest it using your quant skills. Be your own boss, live off the profits. I bet you'd like that.

