The first thing we will do is to go to our wordpress site administration panel (WP-Admin)
Once in our panel, we will look for the section
In this section we will select “Themes”.
Once inside the “Themes” section we will be able to see all the available themes, to activate
If the theme you want to activate is not installed yet, we invite you to see the documentation to install it.
Once you are in themes and your theme is already installed, you only have to put the arrow of your mouse over the theme, and new buttons will appear,
For example: Activate.
Select activate and nothing simpler than this, your new theme will be activated.
Don’t forget that your active theme must be the child theme, so you don’t lose changes with future updates.
I hope it has helped you, thank you for trusting us to help you.