How can I edit the text boxes on the landing page for example the “About me” section to put in text? It will only display text from my about page not custom text I want only on the landing page
All of the theme’s landing page content is configurable in its settings, under Appearance > Customize > [FL] Landing Page. There you can enter text in certain title fields and select the pages that get used to create the text blocks with.
To define the actual text displayed in these blocks you’ll have to edit the pages themselves.