Set a bigger price on tickets but check to see if you have full stadium and also they can be just lucky when they are selling players they are taking a lot of moneys on them, I had problems with moneys too, now is a bit better but still also a tip for you, at the end of season sell players which you don't need anymore, after season pass they will be 1 year older and their value won't be like before.

Also you can make some moneys with friendly games

Cheer!