These standards describe what students are expected to know and be able to do by the end of the course:
NC World Language Essential Standards by Level (logographic languages)
For a more detailed version you can look at this document from NCDPI
Unpacked Content for Modern Language Programs - High School Credit Courses Levels I-VIII
This is the level you should be at for each of the skills by the end of the year. Your grades are categorized into the different skills, so you can easily check your progress in each area.
The target level of proficiency for the AP Japanese exam is Intermediate Mid.