Making Posts Stickey

I am in the process of uploading some of my members' old blogs. I'd like them to show randomly except for the first one, which is "About" the member in each category.

The main page is https://blog.christiangays.com
The pages I'd like to make sticky within each category are
https://blog.christiangays.com/about-brotherlawrence/ and
https://blog.christiangays.com/about-dj/

I have chosen "sticky" for both of them in Visibility, but they are still getting pushed down.
How can I make each member's About page to be the first in their posts?

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