Frankly, sportsbetting is hard. We can do analysis on a game whether a team will win or not but the bookie for sure has the more experienced people behind it to make the odds is a bit harder for us to pick.
Bookies always have an advantage thats why they are making the plays. Again many matches are fixed like anything and you cant win those matches simply by taking into account the past game analysis and prediction.
As I see in my real life, there are many people lose their money in sportsbetting just like in any other type of gambling.
It is just another game of chance. Nobody said that gambling on sports is not going to be the same as the dice with 50-50 chance. It is EV+ surely but there is always the risk of loss.