What about monitoring variable levels of social media consumption with the individual levels of depression / anxiety. I have periods of higher and lower social

What about monitoring variable levels of social media consumption with the individual levels of depression / anxiety. I have periods of higher and lower social media usage. And I have noticed that there is a strong inverse correlation with my mental health. My personal experience is just anecdotal evidence but a study with time variation may eliminate a lot of individual factors ( e.g people with depressing nature using more social media) but leave open the question if depression causes the increase of social media or is there other way around. ( I think thant both)