Train a group of muscle groups every day (arms on Monday, chest muscles on Tuesday, shoulders on Wednesday, legs on Thursday, etc ...)
Proper aerobic exercise is also important. Don't think that people don't need aerobic if they are thin.
When exercising muscle groups, we should pay attention to heavy weight and few times. Usually repeat 3-4 groups 8 times ... like this. Remember that carrying a load can completely tear your muscles, and eating protein at night can reshape your muscles and make you stronger and stronger.
The specific training movements of each muscle group are available online, so I won't repeat them one by one. You can also download some apps to help you fully understand the training of muscle groups.
In addition, abdominal muscles can be trained every day, and other muscle groups need to rest for at least one day.
Thank you ~ I hope to adopt it ~