Instead of dreading the weekend, embrace it!
Make a plan of activities to keep yourself busy. Break whatever drinking habits you had. Change the pattern drastically. The main thing is to have that plan and do not go back to the old habits. You'll find it's the best, most productive weekend you've had in awhile. Although, in my first few weeks I was so sleepy I went to bed really early.
For example, in my weekend I planned 3 hour hike in the hills, went out to the movies (to get out of the house), played cards for several hours with the kids, exercised, etc., It's such a great and empowering experience waking up in the morning without the hangover and knowing you've done so many things.
Write down that schedule, hour-by-hour if needed. Make it a fun time...I got so granular I put down when I would have my ice-cream/chocolate syrup, stretches, warm bath, etc., Whatever it takes!