How do I know what to actually do after reading a soil test?

You can read a soil test, name the numbers, see what is low or high. But turning that into a decision about what to actually do still slips away from you. That gap is normal. Reading a report and knowing how to act on it are two different skills, and the second one comes later, with practice. The numbers are only a description; they do not tell you the whole story of your particular ground, crop, and season. Knowing what to do grows from connecting the test to what you can see in the field and what you want to grow. It becomes judgment over time, built from trying things and watching the result. One step: take one clear signal from your test, low in one nutrient, say, and make one deliberate correction this season, then note what changed. You learn the doing by doing. Each cycle turns the numbers into something you actually understand.