A few months ago, I was invited to a friend’s brother’s 21st birthday celebration. Initially when I got the invite I was excited because this is a milestone birthday for most people. I would be able to have a glimpse of my early 20s. But that journey down memory lane made my excitement quickly disappear. I started to get flashbacks of my own 21st birthday. It felt like the ghost of 21st birthdays past. The one lesson I learned from that night is that 21st birthdays are unpredictable– and I do not think my knee can hold up. Let’s have a moment of realness. I am in my late 20s…