SEO help needed! Pointing at the right ranking page

Hey, IHs! Maybe you guys can help :-). I'm losing positions for the term "personalized videos" (US). I just realized that in some blog posts I'm linking to this page https://pirsonal.com/personalized-videos but the page that is ranking on page 1 on Google is https://pirsonal.com.

I guess I should fix all the internal links so that "personalized videos" points at https://pirsonal.com.

Does this make sense? What else would you do?

Thanks a lot for your help.