Sobering up, handicap.

Hello all, I am 19 years of age stopping after about 2-3 years of smoking. Currently on day 8, and at the peak of my withdrawal so far. I would be running/jogging to help but unfortunately I just had a huge knee surgery and am off my feet for a few months. I have been going to the gym working out upper body, followed by the sauna, trying to get as much sweat out as possible. It absolutely sucks not being able to be more active as I know that would help SO MUCH.

So, any tips? Thanks! 🙏