You're doing the right thing by staying sober. I think we get used to the immediate gratification of drinking, so it's really hard at first to wait for the rewards of living sober - they come with time.
Right now, your reward for not drinking for a week is probably mainly physical. You don't have a hangover and you're starting to feel better. This can be a dangerous time - lots of people drink at this point because the physical symptoms have gone away and yet you're still in the grips of the disease. It was really hard for me to get past that point. The bad memories of drinking only take you so far in sobriety.
So this is where your support system gets really important. Reading your first posts can be helpful as a reminder why you're doing this. Do you have any other kind of community support besides SR? Are you making plans to help you get through the tough times?
The rewards of sobriety take a bit to start accumulating, but they snowball just like anything else. With time, you'll be rewarded even more physically, but also financially, intellectually and spiritually and in your relationships with your family. It's worth fighting to stay on the path.