RE: Why there is no trending post for me?

You've gotten great advice already from other commenters. If you play Splinterlands, certainly create more posts via that community, following their guidelines, and post in their discord promotion channel.
Pay attention to what other topics get better upvotes and do more of those as well. I have a fav topic to write on but I don't do it here because in the past it wasn't well supported... and just haven't since I've been back.

I haven't checked to see how often you post, but if it's every day, then maybe cut back to every other day, in addition to focusing on 1 or 2 higher paying topics that you enjoy covering. I'll also add you to my auto-vote list in case I don't catch your posts to manually vote or pass through to comment. It's wonderful knowing you're still here... I remember you from way back when... and I look forward to you continuing on and enjoying higher rewards too.