As long as you are tapering off under doctor's supervision, I'd say give it a try.
I was of the same mindset as you, where I wanted to give sobriety a go without the antidepressants. They were actually recommended to me at a year sober when I was in the psychiatric ward (long story) but I was pregnant and refused to put anything in my body.
This much I can tell you, even though I actively work the steps, have a sponsor, work with others, and do what the Big Book suggests, the maximum I have been able to go is three years and the end result has always been if I owned a gun, I would have stuck it in my mouth.
There is also a history of untreated clinical depression on both sides of my family, which has had tragic results with more than one family member.
I have come to accept I have a chemical imbalance that no amount of good quality AA, along with a loving God, is going to solve.
That has been my own personal experience.
:ghug :ghug