First off, let me say that it took many tries for these abstentions to stick - that is normal, and you should remember that. Be kind to yourself. It's a skill and a habit you are building, and those things will take time. It took me years to finally gain real duration in my abstention.
Second, the fact that you are considering abstaining should be enough of a signal to you that something in you wants to stop - and this is enough to base the new behavior on. You don't need anyone's permission to stop. When I stopped I always heard about how "I wasn't enough of a drinker" to worry about it, etc. Many comments of this nature came my way. Just know that you know yourself best, and if these thoughts are arising, you should explore them.
And third, remember that if you are feeling unfulfilled in some aspect of life, substance abuse (of most types) will cloud this bad feeling, and give you an instant uplift. What happens then is up to you, but for me it led to a persistent drain on my ambitions. Thus I wasn't doing what I wanted, but at the end of the day, comfort awaited in the form of my drug of choice. This was my revelation that I eventually used as motivation.