Loose/Excess Skin

Hello,

Did anyone have or does any have any problems with excess skin? I am 180cm tall, male and weighing in at 120.9kg. I want to get down to 85/90kg over the course of a year. I am not sure if I will have any excess skin or not or how to try and prevent it if I might. I am hoping that by losing steadily it won't happen.

I was just wondering if anyone out there has experience with such.

Cheers.