What is a streak?
Updated
A streak measures the amount of consecutive weeks you've achieved at least one proficient skill.
To start a streak you must earn at least 1 proficient skill.
To maintain a streak, you must achieve at least 1 proficient skill every week. The streak window runs from Monday at 12:00am to Sunday at 11:59pm (Pacific Time). Doing so will continue your streak.
If you do not maintain the streak, the count goes back down to 0.