Hi. Im currently playing liverpool and my problem is not to score goals. my problems is that my team play best in first half and usually leading by 1-0, 2-0, 3-0 but i the second half i totally loose possession and chances and in the last 30min of the game the oppenents sometimes equalise or even win the game. So i was wondering if anybody had any good controlling tactic which just makes you keep possession 
I've posted my formation + tactic

I've posted my formation + tactic