Use the adjective intermediate when you find yourself in that in-between stage, like after you complete an introductory class but before you are ready for the advanced stuff.
The word intermediate comes from the Latin intermediatus, tracing back to intermedius, which combines inter-, meaning “between” and medius, meaning “middle.” So you can see that intermediate describes something or someone in the middle, between two distinct phases, like an intermediate swimmer who has mastered the basic strokes but isn't yet ready to join the racing team.
adj lying between two extremes in time or space or state
intermediate in character or position
at a point midway between two extremes
in-between, mediate, middle
being neither at the beginning nor at the end in a series
junior, next-to-last, third-year
used of the third or next to final year in United States high school or college
next to the last
used of the second year in United States high school or college
near but not precisely at an end
third from last
being or situated at an end