Gambler: Secrets from a Life at Risk
Book by Billy Walters
Get this book. Not only is it a good read but it'll give you an idea of how insanely hard you have to work to beat the books.
There is also commercial software out there that tracks all the stats available where you can build your own sims or let its algorithms optimize picks for you. One thing to be cognizant of though is it's based off pure stats and doesn't factor in that Joe Burrow broke his ankle last game and is out for the season. It's a tool and fun to play around with, but not a sure fire way to easy money.
Personally I realized early on this was a fools errand for me. The reason I still bet on games is because it gives me a reason to care about a game that I would otherwise have a mild interest in. Entertainment dollars and nothing more.
Back in the early nineties when you still had to call in you bets, my bookie had a plain white business card that just said '11 is bigger than 10' with his phone number underneath. Took me a while, but I finally figured out why.