This is a simple block of text. If you click anywhere in the text the block will open and you will be able to change the style. Hover over the block menu and you get the explanation. Click on the 3 dots and you have a largish drop down menu. Choose “edit as html” and you will then see why we use WordPress.
to insert a line break use “shift + return”
To keep any changes click on update in the top right of the screen. You can view the page as it will be published.
To create a new block click on the 3 dots and choose “insert below”. This will creat a new block below this one. Click on the + at the right end and you can then choose the type of block you want. I chose the media with text block.

The media with text block allows you to insert a picture, either “upload” from your computer, or from the library of pictures held in the website media archive.

Click on the picture and the juxtaposition can be changed.