In The Summer I Turned Pretty season 3, what does Jeremiah lack to graduate on time?

In The Summer I Turned Pretty season 3, Jeremiah lacks enough college credits to graduate on time.

At the start of the season, Jeremiah is expected to graduate during his senior year, but he discovers that his academic planning has left him short of the required credits. He must remain in college for another semester rather than graduating as planned. This problem becomes one of the season’s early pressures and affects his relationship with Belly.

The plot uses an ordinary academic complication to show that the characters are no longer simply returning to a childhood summer. They are dealing with college schedules, career decisions, finances and the practical consequences of earlier choices. Jeremiah’s delay also helps establish the time jump at the beginning of season 3.

The issue is not a failed thesis, internship or language requirement. The specific problem is a credit shortfall. Because he is missing enough credits, he cannot graduate on the expected timetable and must complete another semester.