Ok, start to answer: you said that the more you practice, the smaller you get. Actually, you said yourself that you run every day. Excessive aerobic exercise will definitely lead to muscle gain difficulties. Some people want to lose fat and gain muscle, so they need to find a balance. I don't know your chest muscle training plan, and I don't know if it's reasonable. I don't know your diet, your physical quality, and I haven't been your body. I don't know, so what nonsense training plan says about diet and training intensity is bullshit. I can only give you advice on aerobic training. If you focus on muscle training, you can run twice a week and jog for up to 40-50 minutes at a time. If aerobic exercise consumes too many calories, it will affect your muscle gain. I am an international registered physical fitness coach of REPs and a senior physical fitness coach of aasfp. I'm happy to answer your question.