Hi and welcome XCO
Cold turkey may be the way to go with other things like cigarettes etc but it can be dangerous with alcohol if you've been a regular heavy drinker for a long time. Why not see your Dr first - ask about detox - be safe?
oh and definitely quit while you're ahead - 2 cans once a week still sounds like slavery to me - ands if you're a drinker like I was you won;t be able to keep it at that anyway.
Quit for good. I've never regretted it
D