How—and is it actually possible—to beat the bookmaker at in-play betting over the long run? ?

Pre match betting feels easier to analyze, but live betting seems way more dynamic and emotional. Some people claim they only make profit during live matches because bookmakers react slowly during momentum swings. Others say it’s impossible because emotions destroy discipline. For those who focus on live betting, what sports work best for you? Do you rely more on watching games or on stats and trackers during the match?