I've been doing that manually for 2 months successfully (40% ROI) with SPX 0-1 DTE (Days To Expiration) options, both puts and calls. I might be just lucky so I purchased some data to do backtesting with 15m timeframe. I didn't complete the test yet but I can calculate probabilities of certain events happening that confirm my strategy. I am starting to think I can do this long term.
Am I onto something or is this survivor bias?