I long ago gave up perfectionism (as in about age 18) but the words “good enough” sounded synonymous with “mediocre” when it came to my efforts.
I soon realized that what my personal standard was (in school and work) is excellence, as judged by me. If I know I’ve done my best with the skills and experience and intellect I have, I’m satisfied. In other areas of my life, I have no problem calling “good enough” on something I’ve done—cooking, cleaning, gardening. If I can live with the results, I let the rest go.