Stuck on increasing domain rating ahrefs

DR only moves when you get links from new domains that themselves have decent DR. More links from a site that already links to you barely count, and a hundred links from junk sites do next to nothing. The scale also gets harder the higher you go, so going 10 to 20 is far easier than 40 to 50. And it's Ahrefs' own metric, Google doesn't use it. I'd chase links that bring real visitors and let the number follow.