Welcome to SR scotslad, I can only speak firmly for me, but I tried to moderat/control my drinking for many years and the only thing it led to was me becoming, physically, mentally, & spiritually addicted to alcohol. Life for me was hell trying to control my drinking, for me life is far easier not drinking at all then trying to control the beast within.
As Dee said:
I think, if it were possible, we'd all have done it.
All I know is I tried and failed.
If you decide it is time to quit see a doctor first and be HONEST.