Your early 20s are the years to go out, tequila shots, make mistakes, and wake up the next day with go-get-em attitude, ready to do it all again tonight. Yeah, well, that's all over now, Here’s a list of things that just aren’t fun anymore after you turn 25. 1. Shots. What’s that thing where you make the poor decision to do something that you used to be able to handle fine just to prove you…