Hi guys, currently I am selling strangles on SPY and ES about 39 days or less until expiration. My goal is to make about 2% profit per month. When volatility is increasing I also like buying straddles about 90 days until expiration, but in general depending on the market condition, I am more seller than a buyer of the options (about 2 to 1). Currently I am not day trading, although I have done it many times in the past. When it comes to day trading I have mixed results, made money one year lost money the next year, until about four years ago. Four years ago I came to a conclusion: The only way to day trade is to have a strategy with 90% + probability of making money. Since then, I have succeeded twice. First time it was for about one year and it was a strategy with 95%+ probability of making money (near riskless arbitrage). The second time lasted about six months, with similar percent probability of making money (95 %+). So my question to you guys is: is this all that I can do and expect from trading? Or is there more? If anybody is currently trading a strategy with 90% + probability of making money (trading with real money, no hypothetical stuff) please let me know, or at least give me a hint what should I look for.