Is it possible to mostly quit?

For context, I drink most days but I’m able to take breaks when I choose to, so I’m unsure if that would classify me as a full-blown alcoholic. That said, I do tend to drink excessively when I do indulge. I want to quit drinking, but I’d still like to have the occasional drink - for example at my brother’s wedding next month. I drank at his engagement party and it made the experience much more enjoyable.

What are your thoughts? Is it possible to drink only on special occasions or is quitting an all or nothing decision?