Creating Child Themes

Hello,

I tried to create a child theme for my directorypress website (Version 4.1 – responsive) after watching the video tutorial on https://www.premiumpress.com/wordpress-child-themes/

This is what I did.

1. Accessed /wp-content/themes/DT41/templates/template_directory_theme and created a new folder named template_directory_theme_dotix and copied all the contents of template_directory_theme to it.
2. As I am not an expert on using ‘functions and hooks’ I copied two files named ‘css.bootstrap’ and ‘css.bootstrap-responsive’ to a manually created ‘css’ folder inside the child theme folder.
3. Logged on to my admin panel and selected my child theme. All my settings work fine and the website loads perfect.

Could anyone on this forum guide me if I have done the right thing? Will any future updates to Version 4.1 affect me as I have copied the above mentioned files to the child theme folder instead of using functions and hooks?