I’m trying to lose weight after my spinal fusion and disk replacement

I had a spinal fusion and disk replacement a little over a year ago. I used to be an athlete in calisthenics, boxing, parkour and skateboarding. Due to the surgery and meds I was on (that had a side effect of weight gain) I ended up losing all of my strength and stamina.i lost all my motivation and discipline but now I'm finally trying to take control over my life again and meet myself where I am. I'm afraid to restart but I know I can't keep going like this. I'm not going to post photos right now of my exercise or steps because I'm too embarrassed. When I start to reach my goals and feel more confident then I will post it on my YouTube @bionicandback for now the only online posts I make is me at pastry school @patisseriedaliah on insta or YouTube or TikTok.