Former Weekend binge-drinker here. I was very similar to you waiting all week to get loaded as soon as Friday comes. Binges getting heavier and behaviour more erratic and addicted and moods swings galore.
Glad to be out of that vicous cycle now, sure it's hard at times but it's worth it as the rewards that you gain through not being in the game anymore are major.
just hang in there during the tough times and as time goes by you tend to find yourself not obsessing about the weekend bender and wondering how you ever put up with the hangovers/WDS/comedowns. Make sure you work a recovery program though as you need it to change the way you think about life in general and others in-order to remain gratefully sober. And even that gratitute has a habit of taking a nose-dive at times but you just have to get through it and appreciate that if giving up bingeing was that easy then there wouldn't be loads of relapses happening all the time and millions of pounds being made in rehabs etc
Just treat it basically as one day at time staying away from that first drink and you wont go far wrong at a basic level. Then just work some form of recovery program ie- AA 12 steps or whatever you find works for you, and then you should stand a chance.
peace and Love