Although we don't provide one-on-one training in WordPress, we've found that the new Block Editor tool is intuitive and easy to learn, even for folks who wouldn't consider themselves highly technical users.
The WordPress.org team hosts a robust collection of training courses and videos on their site. If you're new to online publishing, we recommend "Getting Started with WordPress: Get Familiar." You can disregard the sections on installation and theme selection, since we've handled that for you. Skip ahead to the sections on Posts, Pages, and the Image Library to understand how everything comes together.
You can also explore the WordPress core documentation, especially the sections on publishing and media.