Great Post! Over the past 2 months on Steemit, I have made many of the mistakes that you have pointed out. I am now relaxing and being myself. I post about things that I am interested in, and I also now find myself commenting more than I am posting.
I am also finding that as I am now less concerned about the "upvote", I am actually receiving more of them.
I look forward to reading more of your work.
That's a great new approach - sit back and relax, interact with others and share good content and it will pay off. :)