First off when I quit working for the gov't, I had two businesses going that was bringing in healthy funds plus I had quite a few rental houses that were all positive cash flow, and I had three million in the bank from trading-all from mechanical trading and done so over three decades. So even if/when my methods stopped working, I had something to fall back. You don't even have a degree, so you don't even have education which at very least open doors, you be that guy at the window saying "can we supersize that"? You have to have fallbacks, it markets go in bear market, many of what you trade might not allow to sell short, then what? That is a major problem of those who have learned how to trade a bull market as you have zero experience of the bear and many low end stocks can't be sold short. I never have and even today have looked at trading as a job, always been full time hobby, my taxable funds have come from other areas of investment or jobs I have taken and now which 99% of it automated, I have more time to design and back test and do other things in my life. This is where having mechanical systems be better that what you are doing, I no longer have to trade or watch screens and can trade any amount of instruments and you are limited.