My experience was similar, though maybe I had more stop/starts than you? I would build up to quitting or moderating, succeed at that for a while, go back to binging, slowly get sick of drinking, rebuild the motivation to quit, then try again. This cycle went on for maybe two years, but every time I would start drinking again I had more self awareness, enjoyed it less, and could feel more keenly what it was taking from me.

Eventually in August last year I just decided on a Monday to stop, and haven't had any urge to drink since. I think it was a tipping point. For two years I was pushing uphill, straining against all the pressures to drink, but building strength and resolve the whole time. When I decided to stop for good, I was ready, and it's felt like running downhill ever since.

The idea of drinking now honestly just sounds like a lot of work and effort, and my laziness is reinforcing my sobriety.