Where is my post?

I have made a post yesterday and I know that it was my first post and it was needed to be approved by a moderator. But my post is just gone. I've not received any message either. Please where is my post? I really need that up.

The moderators are volunteers, and sometimes it takes a while. It's peer support; so at the same time, we have our own personal business, etc, that we work moderation duties into. The short version is new posts are gotten to when they're gotten to, hon. Be patient. After a short while you will no longer be on mod preview. Until then, sometimes its a waiting game.

Do posts have to be approved by their respective forum moderators? or is it just anybody who's online?
The reason I ask is - looking at the SPD forum (where I have just posted a number of times), the moderators haven't logged on since "22 Aug 15" and "12 Sep 15"...

As you see (by virtue of your posts have been approved), moderators have their super-powers everywhere. Although some forums have named mods for whom that is their specialty. And some forums have no named moderators at all.