One thing to consider. When the stocks that are part of a mutual fund drop… then your retirement contributions will be buying them on sale.

Assuming the mutual funds are spread out to minimize risk (1 of the funds companies folds, etc) overall you’ll be better off long term.

As you age you’ll start moving your investments to more stable options. Ones that won’t benefit from huge gains but also won’t be wiped out by massive drops.

In the meantime look at how your funds are doing over time. Not even year to year but maybe every 2 or 3 years.