How long will a brow lift last on a young person?

I'm 23 years old with hooded eyes that I would like to correct by getting a surgical brow lift. Because the problem I have is not due to aging how long would a endoscopic brow lift last for me? I know aging happens to us all but would my brows droop less with age in comparison to if I didn't have the procedure? Or is it a case of the skin becoming loose gradually after the surgery? Would a brow lift (endoscopic) last longer on a young patient that an older one?