Falling behind in one area usually means you grew in another. Check the whole report card.

Attention is finite, so a dip in one column is often the cost of a climb in another. The term your grades slipped may be the term you learned to work, or held a family together, or figured out who your people are. None of that shows up in the column you are staring at. A single number is a narrow view of a wide year.

Make a quick list of everything you got better at since the spring, including things nobody grades. Put the disappointing result next to that list rather than alone. Then decide what actually needs attention, if anything does.