My height is 176 and my weight is 150 kg. After going to the gym for more than half a month, I gained weight, which made me afraid to eat breakfast sometimes, but I still rose.
In fact, weight gain is understandable, because when fat meat is converted into muscle (lean meat), muscle must account for part of the weight. Water is more difficult to consume in muscles than fat, and weight will also rise. But after a while, if you persist, you will not only become strong, but also lose weight. This is a process, as long as you feel thin, there is no problem.