(Irrelevant to problem) how i can delete the post


how i can delete the post. and submit flag to moderator for that post?
i am new to platform. sometimes i did stupid(really stupid) mistakes and created post, & when i realized after that then now post is not worthy which cannot be useful to anyone else too, & i don’t want to clutter it with posts like this & feel responsible to remove posts like this. If anyone knows how to raise flag to moderator to delete post, any help will be appreciated. Thank you.