What SEO factor does my site need?

My UR is 6, i have 100s of backlinks but traffic from them is pretty much non existent, i have blogs with relevant keywords and anchor texts with internal and external links. Have alt tags, meta data, schema data, and writing with keywords on all pages of my site. All my social media is pinterest, fb, IG, and TikTok. My sales come from search and pinterest but non from links or other social media.