Making sure the content appears natural, and having your (relevant) keyterms in Heading <h1> and title <title> tags is more important than keyword density! Make sure you have some semantically similar terms in there also
I just wonder if there is a title do i still need to put my keyword in H1? How? where do i need to place that if you already have meta title.
I think those two terms are almost interchangeable, but when I'm writing an article, I always check the kw density (6-8% is ideal).