@Enver_Mehmet Here is a short story. But one question what tool are you using to validate your key word?
You have a title and a meta description in the SEO block that is used together with your text on the page H1 H2 H3 is important
Recomendation is to have only one H1 on eacj page with important word.
The you can have a couple of H2 and H3 tags with other words.
Long time ago you use key words. they are now replaced bu tahs like H1, H2 and H3
Let your tag match the wording in the meta description,
This was the short story