Besides the other good suggestions, having a personal trainer demonstrate exercises and work with you to get the proper form is extremely helpful. I worked out

Besides the other good suggestions, having a personal trainer demonstrate exercises and work with you to get the proper form is extremely helpful. I worked out for years learning it myself, even doing a bodybuilding competition. I then had a personal trainer for a few weeks through work and discovered part of my squat form was wrong. It wasn't causing harm but was holding back my gains and did increase my risk of injury.