My father, now deceased, was extreamely extroverted. He covered all business and personal cash flow shortages playing poker.
Poker lessons I was taught: Do not play with family, freinds or neighbors. Don't bet more than you can afford to loose, even people with internal supercomputers can loose, don't play if you do not feel an active sense of the jugular while playing, and for heaven's sake know when to cut your losses. Fold, walk and do not look back.
I decided in adolescence to not play at all. I could not see me, ALWAYS following ALL the rules; and unless I was willing to follow all the rules all the time, I WOULD NOT WIN.
I've always refused to play the markets; any of them, unless I have actual product to deliver if I guess wrong. I also avoid production contracts. Both strike me as very fancy versions of poker.