what is the matter with my website?
Easily the most common question a webmaster might have. Especially if you rely on SEO tools and scores. Those are mostly set up to drive business for others. Nothing wrong to use them to track your own progress but the baseline is your own site, not the competition, or it will not provide useful data. You have no way to know enough about their site to evaluate those comparisons and they end up supplying more questions than answers.
If you have validated your site's html: ht
tps://validator.w3.org/ and css: ht
tps://jigsaw.w3.org/css-validator/ to ensure there are no major coding issues and examined your site in GSC to see that there are no problems with reading and parsing for the bots you want, then it falls to content. Is your content perfect? Probably not, but it is easier to get wrong than right. Write for your visitors, the user experience is valuable to cultivate.
Every link on the internet that points to your site is not counted as a backlink. For example, the link you tried to drop here might easily count against your success (UGC). If you have 644 different sites that are recommending that people visit your site for 'this' or 'that' with links to 'this' and 'that', then those could be considered backlinks. And IF the sites that recommend yours have enough 'E-A-T' (expertise, authoritativeness, trustworthiness) that should benefit your site. If you dropped those links yourself, you have no backlinks that add value for Google's concern.
DA, PA, UR, DR are proprietary measurements that Google does not use to determine your place in the value scale. Work on making your visitors happy, answer the needs that brought them to your site and you can stand a better chance of moving up the scale.
There is much more that goes into being the best. Your Rich Results should be accurate to be useful. Your sitemaps should not contain links to every version of your content. Make sure you are using canonicals correctly both at site and page level. There are many details that go into improving your site, be sure you don't follow the wrong advice. Success is slow, hard work.
It could be helpful to read through some of the discussions here. This one for example: [
webmasterworld.com...] helps explain some of the things that send the right signals. Our site search is your own university.