1. Click where you want the image to appear.
  2. Click on Upload/Insert, right above the Bold icon on the editor toolbar.  You’ll see this icon:  Media icon
  3. If this is your first time using this image, click on Select Files
  4. Navigate to the image, select it, click on Open
  5. Name the image something you’ll remember a year later
  6. Add Alternate Text that a browser can read to sight impaired people
  7. Edit hyperlink if you like
  8. Select Justification
  9. Select Size
  10. Click on Insert into Post

If you’ve used this image before, click on the Media Library tab at step 3, find your image, click on Show Image, and continue from 5 above.