This site's own routine section lists a fourth specific step worth understanding on its own: track how you feel.
This site describes it directly: many users notice a difference over several weeks — worth reading "track" as an active instruction, not a passive wait-and-see approach.
Since this site separately states 30-90 days for consistent results, actively tracking how you feel across that window — rather than relying on memory alone — is worth doing to fairly judge your own experience.