First of all, height 177, weight 70kg, is a standard healthy weight. Just from what you said, you have less muscle and more fat, which is what people call more fat. I suggest that you don't go to the gym to do forced exercise to lose weight, so if you stop exercising, you will rebound and grow more fat, which is not worth the candle. Instead, use: get up 40 minutes earlier than before every morning to go out for running and exercise; Second, it is best not to eat pasta and meat every night, which leads to overnutrition and fat; The third is to make a cup of tea at night. The first thing to do when you get up the next day is to drink tea first, and then go running.

However, if you want to be strong, agile, elegant, temperamental and beautiful, the key is to persist. It would be even more beautiful if we could learn to practice martial arts again.

This is purely my personal experience.

You try, it should be no problem.