The best way to monitor one's physical progress includes utilizing a combination of methods. Regularly tracking metrics like weight, body measurements, and strength levels can provide quantitative data on changes. Additionally, keeping a fitness journal helps record workouts and personal feelings about progress. Photographic evidence, such as progress pictures, can give visual motivation. Lastly, self-assessing improvements in endurance and overall well-being contributes to a holistic understanding of physical progress, allowing for informed adjustments to fitness goals and plans.