Welcome!
I echo some of the comments previously made in terms of well done for getting to grip with the problem now. At your young age you have so many wonderful things ahead of you if you can get yourself fit and healthy now.
I am now 50 and one month sober. If I could have one wish it would be to turn back time and knock alcohol on the head once and for all at your age. During the past 20 years my drinking cost me my marriage, a great career, the trust of my children, my health, my friends and my self esteem and appearance. At 27 you have all these amazing things ahead of you. Seize them. Seize the day.
We will all be rooting for you!