Help! I took a screen shot of me finding 2 emeralds, and I don't know how to post it!

I am wondering how to post a screen shot in this space.

 

Hello! How I post pictures:

1. Take the picture.
2. Click on it in the chat.
3. You'll see the picture.
4. Click on the 3 little dots in the top left corner.
5. Click 'Copy'
6. Then ctrl + v
7. It should be pasted

 

Hello! How I post pictures:

1. Take the picture.
2. Click on it in the chat.
3. You'll see the picture.
4. Click on the 3 little dots in the top left corner.
5. Click 'Copy'
6. Then ctrl + v
7. It should be pasted

 

It dosen't have 3 circles in the top left

 

Ohhhhhh! I see it
Thanks