My first experiment create WordPress Plugin in 2018

This is my first experience after 1 year not making wordpress plugin. I ussualy make plugins only for my personal website needs. Many which have changes so i must learn again . This time my purpose is to publish wordpress plugin in . I just want to do experiment with wordpress plugin if it can be usefull for public also for improving my code skill and marketing skill.

I realize my codes is notĀ  good. so i need to read a lot of other people codes . WordPress repositoriesĀ  and github has a lot of great plugins. Here are some which i think will be usefull for my experiment :