What is the maximum time post-op that an endoscopic forehead lift can be reversed?

Hello. I had an endoscopic forehead lift and I am not satisfied with the results. My hairline has receded by 1cm, making my forehead look huge, and the brow shape is too high and asymmetrical. Fixations were done via bone tunneling using dissolvable sutures. There are 5 incision points with 1 fixation on the left side and 2 fixations on the right side. I have read there is such thing as "too long" to reverse the results. When would this be?