(DA )Domain authority, Links Buildung

I need to increse my (DA )Domain authority. My website should be in the same stage or better like my competitor. I added some images to understand the topic. for any damage on my website yoiu have to solved it.

https://docs.google.com/document/d/1j15Ir1-Y4HdpphkDR70rQV2W0LpJj9IXMqANTnJo8so/edit?usp=sharing