For me it's unrealistic to say that I am going to do anything "forever". Forever is a very long time and there are a lot of things that happen in life that you don't expect.
Having said that I fully realize now that I cannot drink responsibly, and that it is in my best interest to never pick up a drink again. As long as I remember that and do the necessary things to not pick up the first drink, things seem to work out much better than the alternative.