You must be thinking too much. It is good to go to the gym to lose weight. Exercise is both effective and healthy. Pieces of muscle are not enough, and you are not a professional athlete. But remember, to achieve the effect of losing weight, you must do aerobic exercise for more than 20 minutes before you can start to lose fat, otherwise you will only lose water and make it up after drinking water.

Furthermore, I suggest you do yoga, Pilates and other fitness exercises to beautify the lines.

There is also a wrong idea to correct you. Muscle can improve the metabolic rate of human body and help to lose weight! Doing Pilates can make you have beautiful muscles! Don't think that muscles are hard to die. You know, foreign models have high requirements for muscles.

Remember, losing weight = reducing fat (aerobic exercise)+shaping.

Personal summary, I hope I can help you.