You can assess your Proficiency Level by taking the assessment test(s). The assessment level values are "Unassigned" (default value), Beginner, Intermediate and Advanced. You'll get reward points for clearing each level - 50, 100, and 200 points - for successfully clearing Beginner, Intermediate or Advanced levels. You can retake a failed assessment only after 1 month. On successfully clearing one level, you can immediately take the next level exam. Once you reach Advanced level, you cannot take the assessment (or change your level) anymore.