You are wasting you money with predictions, nowdays you can buy fixed matches and be sure to win. Anyway you will need over $10k to buy the match.
Off course I too agree that one will be wasting money, if any one trying to predict all the matches results to bet. But I will bet only on those matches which I'm very confident about the teams so my chances of losing is quite less so I'm still in profits from sports betting.
I ever buy a few times fixed match and it always lose. I think it is not a guarantee to always win. I better predict myself and when I lose, I do not really hurt. than if you buy fixed match and you lose. you will lose more and more.