Login as administrator (livingboattrust.org.au/wp-admin) and enter your username and password.
Choose ‘Posts’ Add New
Choose ‘Post’ and add a category (or categories)
Enter a title and some text
Add a new block
Choose image block
Add an image (probably upload)
It should appear. Choose ‘Post’ Featured image, then ‘set featured image.
Choose to select the image from the ‘Media Library’, then select the image you want.
You are ready to publish! Phew!