Hi GenJen-
About 15ish years (age 18 to 33).
I had drinks before turning 18, don't get me wrong, but it was around age 18 that alcohol did for me what I could not do for myself and my whole world changed and it was great for a while, but...
...at some point, though I don't really know when exactly, alcohol turned on me and I went downhill fast.
So grateful to be recovered and sober.
Kjell~