Gyno exactly one year after cycle?

Hi i started using Letro: .5mg, 5mg 1mg, 1mg, 1.5, 1.5, 2, 2.5
Currently 4th day on 2.5mg and it has skrunk so that i can barely feel anything. ill keep it at 2.5mg for a week or so and then taper down. it started shrinking at day 2 already @ .5mg