Quote from GodsGift:
The fact that I would post a cautionary tale about a topic (being a fish) that often takes people a lifetime learn is a service that should be provided more often. You should be thanking me - it cost me all my money and a year's worth of earning to learn it on my own.
But that isn't necessarily the right lesson to learn. For example, I did the same as you, quit work with about 15k in savings (some of which I had made playing poker in casinos, ironically enough) and went to trade. 4 years later I had made over 1 million and despite a few bumps along the way it's worked out even better than I hoped. If I had "learned your lesson" I would be stuck in a job I didn't really like, wondering what could have been.
Your decision was not a mistake to be learned from. It was the right thing to do. You went out and took a shot. You found out trading was not for you. That then forced you to decide to pick yourself up and make something of yourself in a field you are better at, and you seem to be doing well at it. If you had not left and tried the trading, you might simply have coasted along and be spinning your wheels. You risked one year of your life to have a shot at a dream, it didn't work but now you have another worthy goal to pursue, which is working far better. I would say you have done quite well out of your apparent "failure".
Now consider someone who is simply not cut out to be a team-player or executive material, but who has a particular talent & passion for trading and the markets. By telling them to "learn your lesson" and never even try, you may be influencing them into a life of mediocre underachievment and unhappiness at something they will never be good at.
At 18 lots of young girls want to become actresses. Most fail, and revert to more conventional jobs. But that does not mean it was wrong to try.