Maybe the method needs to be improved. How many times a week do you exercise? How long is each time? Fitness can not be improved by equipment and dumbbells combined with oxygen, and in the process of fitness, muscles that can't see muscle growth need to rest. You can't practice the same part every day except the abdominal muscles and forearms. Paying attention to diet and sleep should improve a lot. Exercise scientifically and stick to it! Come on, I wish you success!