True most people who try day trading don't make money the same way most people who try affiliate marketing don't make money but if you do your homework, develop the right strategy, and use discipline it's not so far fetched to make a career out of day trading. I know several people who do it with several different investment products (futures, options, forex, etc) and they've been doing it for years. I trade here and there when I think there are opportunities (gold/oil/home builders 8 years ago, VIX/emini during the crash, ford trading under $2 after the crash, apple/google/exxon now, etc) but try to avoid the day to day grind of it because it's just money chasing more money and even the most elite traders struggle to get a 20% ROI. If you have a lot of money to play with and don't want to stick it in a 1.3% CD then it's worth it but I think affiliates would get a better ROI for their time and money by using their skills to build actual companies. Maybe I give affiliates too much credit but I think if you're an affiliate with the right balance of business, tech, marketing, and monetization skills you should have your eyes set on silicon valley where you can take a $20,000 website/app/startup to a possible 7/8 figure exit vs new york where you will struggle for a 10% return on your capital.
You don't have to get lucky many times to make some good money in options trading, in the same way you have good runs and bad runs in poker, it doesn't mean you've beaten the game.
Investing in stocks is totally different to doing daily options trading. Buying and holding stocks is relatively "low risk" in comparison.
As I said, if you're truly good at it you shouldn't be investing with your own limited capital. If you're a day trader and getting an ROI, why aren't you scaling by working at a bank or hedge fund or something? Getting 1-2% on managing $200M is much better than earning 6 figures a year on gains made on your own cash. [ I appreciate it's not quite that simple, so far as when you're trading 6 figures you're not moving markets, where as with 8/9 figures it's a different matter ]