@Kristen-Lango agreeing with @Asyas_illos and @carlianne -- it seems like it might be your values, not necessarily your use of color. It's great that you're not afraid of color and love saturated color. Understanding values will help you control all that color and learn how to lead the eye where you want it to go.
While most illustrators do tend to use a limited palette or a more muted palette than you do, there are working illustrators who use bright, bold, saturated colors. They also control that color, using warms and cools to create focal points, and make full use of a range of values. Bold, saturated colors aren't just midtones -- they also come in lighter values and darker values.
Here are some examples by (L to R, top to bottom) Benji Davies, James Dean, Lois Ehlert, David Catrow, Jay Fleck, Micha Archer, and Jay Fleck again:

And here is the same grouping in black and white. Even with color removed, there is a focal point in each of these illustrations. That's because of shape, composition, and value.

All this is to say... if you want to explore a wide range of color, saturated and more muted colors, go for it! If you want to stick with your bright, bold colors, go for it! Value is the key.