Posting pics is a learning game we play often, so no big thing!
To post, have the picture on your computer.
Start your post and then go to the "advanced" tag below.
That brings a new screen. Hit the paperclip at top center.
Choose the file/files from your computer one at a time and when all chosen, be sure to hit "upload!
That will add them to the end of your post but if you want to have some scattered in the post as I've done here, upload them.
Next put your curser where you want the picture added, like in the middle of the post, go to the paper clip and it brings down a list of the pics and choose which for that spot.
Preview and hit send!