Make it an appointment. Get ready to play the game on Saturday at 09:30 and stick with it until 15:30 give it 6 hours of your full attention. No phone within reach. Make sure to get the housework done by that so you can stay longer. That worked wonders for me. Oh, and play older games. I never played xbox360 or PS3 games (only CoD couch coop with friends) because I had a Wii and only recently got an old PS3 and the games are amazing.