Yes you can do this! I had to get help I couldn't do it on my own. I got myself a drug and alcohol counselor and it was the best thing I did.
I just got to the point where I had enough and knew deep down that I couldn't go on like this anymore. I didn't think I had the strength to do it, but the longer I was sober the stronger I became. It doesn't happen overnight, but here I am 9 months sober! It feels good. I neve thought in the beginning that I would get this far.