Hi Banora 🙂

Do you have pictures of your own saved to your My Pictures on you computer? If not, you can go on to the net (I always google cat images, you get pages and pages of them. Right click, go to Save As and save to your computer.

To insert a picture into your post, click on to the little green tree icon on the bar at the top. At the top you will see the image: browse button. Click on to that you can then go to your computer My Pictures and choose the one you want.  Click upload. Then click insert.

You'll probably need to experiment a bit.