analyst, annalist

Analyst or analyst most commonly means a psychiatric doctor ( psychoanalyst ), or, in a more general sense,  someone who examines a problem by breaking it down into parts and defining the functions of each one--
He has been seeing the same analyst for years now, but he doesn't seem to be getting any better.
"My analyst told me, that I was right out of my head, but I said 'dear doctor, I think that it's you instead'..."
An analyst would approach the problem by first taking the machine apart.
He learned to be a mere analyst in a high school literature class, but he doesn't seem to like anything he reads.

Annalist or annalist ( rhymes with analyst ) means someone who keeps a record or chronicle of events ( annals )--
The name of the annalist who kept this chronicle isn't recorded in the book.
He keeps a record the most popular web page from each day, and hopes to be remembered as the annalist of the internet.

Now that you know that, you can say--
"His analyst has suggested that he treat his own life as an annalist would, by keeping a record of the important events of each day."

Note--not to be confused with "Anna, list", maning a female given name ( Anna ), told to keep or make a series or sequence of names or items ( list )--
Anna, list ten things you did during your vacation.
OR, a ship called the "Anna" could tilt to one side ( list )--
Does the "Anna" list?