I was making 25$ per day trading manually during a specific 20-min time slot for about a year. That wasn't simply by chance -- nearly monotonic increase in tota

I was making 25$ per day trading manually during a specific 20-min time slot for about a year. That wasn't simply by chance -- nearly monotonic increase in total earned sum with 2-week averaging during the year. Though I didn't hedge against black swan events, and I'm not sure it would be profitable if I've tried to. That said my understanding was that nobody else cared to take those money. I've eventually lost all intrest too since it was impossible to scale. That was not algorithmic trading, but maybe-could-be-possible to automate.