Those are very brave posts, @Hangingover, @BunniesBunniesBunnies and @Ifnotnowthenwhen5, its great that its helpful for you and personally I really value hearing other people's stories - I think anything which strengthens our connections is a good thing. Here's mine...
1 How you were introduced to alcohol
My parents are wine drinkers and loved wine and food but TBF were never heavy drinkers, wine was celebratory as it is for most in the UK. I drank occasionally - rarely - in 6th form and the same at uni - the odd bar session but I could take it or leave it and hated being drunk. My relationship with wine started when I was working in London in the 90s (like many others); I shared a house with someone who paid their rent in wine(!) and that's when regular evening drinking started.
2 When/why you recognised the relationship with alcohol was problematic
Probably when I left London - until then I was often working really late and up early so I evenings were short and there was little time to drink. By my mid thirties I was regularly drinking half a bottle of wine a night, more at the weekends.
3 How many times you actively tried to stop
I've stopped a couple of times, each time for a month, and managed that but had never intended to stop permanently. It was the classic break to prove you can stop, to give yourself permission to carry on again straight after.
Like others, I've been trying to moderate for - being honest - years but never thought about quitting completely (a) because I couldn't bear the thought of never drinking again - which seems bizarre now - and (b) because although I didn't like how much I was drinking, it was not "problem drinking" by my own definition (didn't drink in the mornings, didn't drive or work after drinking, didn't black out etc).
4 Any particular steps/plans you have for staying sober or coming to terms with past behaviour
One thing that seems to be critical, from reading the quit lit, is staying connected and accountable - so for me a place like this and Soberistas will be essential I think. I am loving being sober, though, and the added time, awareness and dare I say it happiness that I am getting from not drinking, so counting my blessings, remembering how bad the drinking felt and was and never taking my new life for granted are my main strategies.