Social media platforms require different approaches to extracting data and files. Consider the type of information that should be captured. Is it only video from your Youtube channel, or are the comments part of the work? Most digital platforms will have documentation for how to download your personal data but if you are concerned about accessing the account as it originally appeared, a better approach may be to use a web archiving tool like Webrecorder.io.
Examples of platform specific directions for downloading data:
