I admit that I also created multiple accounts at one point because I didn’t really understand how the forum worked or its importance.
Were any of your other accounts banned?
If you're in a rush to rank up, you're gonna mess up and do the wrong things. Just contribute in a positive way and don't try writing a wall of text thinking oh this is quality they have to merit me. I have seen users make a 3 word post and get merits.
https://bitcointalk.org/index.php?topic=5510287.0 read this thread and see some of the reasons users send merits. It's not a guide that guarantees you get merits, but it might teach you what people might be looking for.