I can't believe it, four years have passed. Since I was first introduced to this platform by my best friend in 2017. After that, due to various activities (more precisely, lack of time management), I was forced to leave activities on social media.
After last week getting encouragement and encouragement from 
Based on the information I got, this platform has undergone a lot of development. Hence, I need a lot of help from people here to help me understand it well.
Warm greetings to all. Hopefully we can support each other for better development.
@djunmul