When is the most accurate time to assess the effectiveness of the procedure?

I am looking into getting a dermatological procedure, and I am curious because I heard that I shouldn't judge the effectiveness based solely on how good my skin looks immediately after the treatment.

Some treatments can make your skin look moisturized immediately, while others take time to show results. I’m not sure when someone receiving it for the first time should judge the effects.

It seems it would be more difficult to judge areas where changes are not significant, such as the skin texture or pores on the nose and cheeks.

Would it be okay to monitor my skin condition for a while before deciding on the next treatment, rather than booking it immediately after the first one?

I am wondering if the appropriate observation period varies from person to person. Rather than setting a high number of sessions from the start, I would like to gradually develop a management plan while monitoring skin response and satisfaction. Is it possible to receive a consultation in this manner?