..be a bookie.
My biggest winning bets have always been on the most random selection criteria. The nearest thing to a certain winner is a five horse race where the favourite has odds of about 1/20 , the second favourite 20/1 and the other horses about 100/1.
A five pound each way bet on the second favourite would pay thirty pounds a 200% return if it cam second and be hundred and thirty five pounds if your horse won.
Thing is I've seen that twice in 15 years of betting.
I'm just amazed and the number of guaranteed systems that people are selling. If they worked they wouldn't need to market them.
So if you feel the need to bet just go with instinct , its as good a method as any. You can actually work out high probabilities but expect to put in 15 hour days. Chip Taylor writer of "Wild Thing" and "Angel of the Morning" among others took time out from the music industry to become a professional gambler, and was successful, but returned to music as it was more profitable and less stressful.
So when you are next passing by William Hills or Ladbrokes , dont go in unless you can afford to lose the money