I'm sure the language doesn't matter and I can't even explain everything to you myself, but I can definitely tell you what to ask for advice from professional people who really do this and know how not only to provide SEO services, that is, to increase the traffic of your site, but even give advice on how it works so you can do it too. And these specialists I am talking about can be found on the website
https://blazemedia.co.uk which was created to provide SEO services, but even there you can find advice on all the questions about SEO that you have.