Hi GenoSt,
The simple short version would be just don't drink. I will say that I think you should keep yourself busy. Here is what I posted in my 1 year sober thread:
My advice is this:
1. Admit to YOURSELF that you are the problem.
2. Remove all alcohol from your home.
3. Determine who your TRUE friends are. (hint: not your drinking buddies)
4. Distance yourself from anyone who is a threat to your sobriety.
5. Surround yourself with people who truly care about you.
6. Allow yourself to experience the emotions that will come about by making these changes in your life.
7. EXERCISE and drink lots of water.
8. Just DON'T DRINK. For the next minute, hour, day, week or month... whatever works for you.
You have 4 days behind you, so WHEN you make it through the w/e, you will have 1 week sober! YOU CAN DO THIS!
Good Luck!