Workouts create stress that the body can adapt to. Recovery gives that adaptation room to happen. More is not always better when the basics are being ignored.
Start with the practical pieces: regular sleep, enough food and fluid, appropriate rest between harder sessions, and movement that helps you feel better instead of constantly adding fatigue.
Tools like sauna, cold exposure, and mobility routines can be useful additions for some people, but they do not replace the foundation. Use them thoughtfully and ask a qualified professional about personal health concerns.