quit pilates and go play something fun

No offense to Pilates but quitting it and playing fun sports instead has completely redefined my relationship to exercise. If you loved playing a sport as a youth, find an adult club version of that sport. (If you live in a major metropolitan area I guarantee there’s a team for you.) You can also just get a friend or two to go play the sport at the park for free! Exercise is way better social and fun (and outside IMO).