I don't have a hosting service and I couldn't figure out how to get them directly into my post. The only images I ever post are to my Facebook page or to a Facebook group. Imgur seemed to allow me to post pics there without having to sign up for anything, so I gave that a whirl. LOL
You can post pictures from Imgur here, just copy the image's link and use the "Insert Image" tool in the post formatation menu (image in the bottom of this post).
Here is one of your Imgur images in full glory as an example:

The picture's size (width and height) can also be adjusted in the HTML code of your post:
img
width=1000 height=505]https://i.imgur.com/ybXZ8W4.jpg/img
Note that in the above example
is your picture's link.
HAVE FUN!
