It's best to separate strength training from endurance training, because after strength training, you need to replenish energy and protein quickly (both are another story, and you should not need to replenish protein), and running immediately after strength will waste the time of replenishing gold.

Look, you have gained 7 kilograms of body fat. It should be that you don't run hard enough. If you are mainly running now, and half an hour is not enough, you can try to slow down and lengthen the running time to about an hour. You can take it with you at first (for example, jog for 30 minutes, walk 10 minutes, run at high speed 10 minutes, walk 10 minutes, slow down breathing, etc. ), but you must stick to the treadmill for an hour.

Don't worry about building muscles. Muscles are not fat, and you don't want to have them. Even if you want to gain muscle wholeheartedly, you will lose weight if you are not careful.

The visibility of muscle is related to body fat. The lower the body fat, the easier it is to see muscles. If you want to build abdominal muscles, don't believe in abdominal muscle training myths. Only jogging can build six-pack abdominal muscles.