The amount of times a bot is correct isn't what matters, unless going for a fixed percentage gain/loss every time. A bot can be right only 10% of the time but make 1000% returns that 10% and only lose 1% the other 90% of the time. That's a great bot to find.

All that being said. Try avoid paid bots, they're mostly scams, if they were that successful they wouldn't share them.