I just installed WP but it has a theme I dont know how to avoid, I used to do backend editor, add text blocks, single or carrousel images, etc. I want to do that way again but dont know how.
Hello,
Thank you for your question regarding recovering your theme editor. If you want to modify a WordPress theme, you should create what's called a child theme. A child theme allows you to make updates that would not be overwritten by updates to the theme.
We also have a helpful guide on How to use the Appearance editor in WordPress.
Best Regards,
John-Paul