Almost certainly not. You’re probably not reading this if you’re already fully fluent & literate in the language, so consider this:
We have 9,000+ lessons and more than 2,000 videos covering 99%+ of Mandarin Chinese. That’s enough material for everyone from absolute beginner to advanced level. If you already have a foundation in Chinese, start from the beginning and skip what you already know. Simple.
If you have any questions or need more details, feel free to message us here or send an email to contact@mandarinblueprint.com. We’re always happy to help!