Oil pastels are not pencils
Not to overstate the obvious here, but oil pastels do not behave like colored pencils.
Their size and shape should have been enough to clue me into that fact, but I proceeded to use them like a pencil anyways. Punished severely for this ignorance I was.
Made a slight recovery when I began using the tool like I would with oil paint. Globing on specks of color, and letting them mix with each other naturally. They don’t quite have the mixing quality of paint, but with a finger or blending stumps pigment can be pulled about.
Attempting to create form with precise strokes is totally not the way to approach oil pastels.