Why is qq space set once, and only you can see it after regular release?

When you talk about it, do you point out that it is only visible to yourself?

First, enter the qq space of mobile qq, click the plus sign in the upper right corner to select "Talk", enter the talk editing interface, edit the message you want to publish regularly, then click the clock sign in the lower right corner to enter the timing interface, click "publish regularly", edit the following publishing time, click "finish" after editing, return to the talk editing interface, and see that the small clock in the lower right corner turns orange, indicating that the setting is successful, and then click "publish" in the upper right corner to send it.

I want to send something tomorrow, but I'm afraid I'll forget it. What should I do? Then send it every once in a while.