Training all that you could. Football might seem easy when watching it on television, but that is definitely not the reality. It's a very intense game that also take a lot of brainpower. You have to remember patterns and think on your own toes with little notice to ensure success. All this takes practice. To get the real experience, buy Liverpool tickets and watch the experts train and play.
Educate yourself on the game. Learn all you can about football on / off the field. Search back in the background of the game, and learn more about the greats. Whenever you realize all the ins and outs of the game, you will develop into a better player both mentally and physically.