You're going to want at least a 57% win rate, and that's maybe ten times the work of building a 55% system. If your goal is to make a living on sports betting, you're going to need to work. There are other venues for placing bets, like matching sites, casinos, human bookies and others but none are anxious to give large amounts of money away all of them have defenses you much consider. The good ones will cancel your account if you're a net winner, the bad ones will keep your money.
Retail betting sites will quickly notice that you're making smart picks. 'The hard part about getting rich from sports betting is not finding a system with a 55% win rate.