NotFit on Instagram: "Season 1, I could barely skip rope for 5–10 minutes without feeling like I was going to die. My legs were heavy. Everything felt slow. So I made it a rule: get better at the rope. By Season 2, I could go for 30 minutes. That’s when everything shifted. My joints stopped complaining. My tendons got stronger. My resting heart rate dropped. My speed picked up. The more I jumped, the lighter my legs felt. The lighter my legs felt, the faster my kicks became. The higher I could j