How Do We Delete Forum Posts? What Happens If Our Post Doesnt Get an Answer?

Hey,

Just wanted to see if there's a way to delete comments on my post.
I replied abit too often before understanding how to properly link youtube videos.

Lastly, I was told most responses take a week when requesting patch.
I understand the forum is a community, eventually I'd like to give back and help others but so far haven't had much traction.

I would really like help on my requests but am I'm better off just removing them and reposting?

Cheers!