Millennials don’t need any help being reminded of how old we’re getting—our creaking joints and 9 PM bedtime keep us firmly aware of that reality! But in case someone out there needed it, here’s the proof: The Tab just did a much-needed retrospective of OG YouTuber DaveyWavey and it’s really making us feel every bit of our advanced years. Especially after realizing that some of the early gay creator’s most iconic videos have almost reached legal…