It's hard to say something what wasn't suggested before. I only can advice to focus on reading instead of posting. Avoid to post when you have nothing to add to discussion and just want to repeat things which was already said in other words. Also, try to not make generic posts because quality is more important than quantity. With 1 good post you can earn more merits than by making 10 generic posts.
And self-moderated topics aren't always bad. People just create such topics to avoid spammers or trolls. Only in marketplace section you should avoid such topics because scammers using this tool to remove bad reviews about their services.
P.S. I see that you wearing Stake signature, but as I know they only accept users starting with Member rank and you're Jr. Member only. You need to get some more merits to join this campaign