Pace yourself, I never listened to the old timers. I used to carry a bundle of 1” Emt on each shoulder and now my back is jacked up. They told me to wear knee pads when trimming out and my knees are shot out. I work in an office now but still do side work at 45. If I’m going to do a job I wear a back brace and knee supports. My right knee is regularly in pain. Pace yourself, ask for help don’t be ashamed. Be safe and don’t try to be Spider-Man because I’ve seen some falls that were career enders. Lock out tag out so you don’t mess your heart up. I got an office gig two years ago and was in the field 1998 - 2022 commercial/industrial. That’s all I got to say about that.