For the past couple of months I've backtested numerous strategies on indices and stocks (moving averages, macds, stochastics, RSI, momentum, chart patterns, options etc.) but they all seem to break down in short time frames like days or months. For longer time frames (>10 years) they seem to show some improvement in the sharpe ratios, CAGRs and max drawdowns with respect to simple buy and hold, but I'm not really interested in that at the moment. I'm mainly interested in trading in short time frames like days or months. So just how do successful day traders even do it? Obviously conventional strategies are not going to work based on my backtesting research. Or I hate to say, is it just dumb luck to strike gold in the short term?
Regarding the question you posted in the title of your thread, I would figure there is no easy answer. In fact, there probably is not an answer, other than the most likely one..."No."
You get yourself groomed to be the best gigolo and hook up with a loaded, horny, desperate cougar and marry her, there you go!
Their name is legion ... In a couple of months, using the "simplest" indicators, they are trying to beat a changeable market. A couple of years/decades is a normal time to develop your own robust day trading strategy. I doubt that someone will just give you something like a reliable adaptive strategy.
Approximately 250 trading days, with compounding an average daily of return of 1.86% would be needed.
Gaining 2% daily, after 120 trading days, the account of 1000 reaches the coveted 100 000. No dumb luck, just the right strategy ... Upd. Oh, Mysteron, you are a minute ahead...