MahCat - I'm also 27 years old and I was a daily drinking for 6 years. I found sobriety to be a little rough starting out but with the support from SR I made it through. I found that positivity helps a lot and going for walks / jogs helps extremely well. I was drinking a lot of water, I think I was drinking about 4-6 quarts of water a day in early recovery which helped me.
Days will not always be good but you have to try staying positive through them, If you're always bringing yourself down and / or reflecting on your past with alcohol - I believe there is a greater chance of returning to the bottle.
Turn negatives into positives, it's not easy but it's possible.