I haunt Reddit a bit and follow r/AskMenOver30 and r/AskMenOver40. A common question I see from younger men: “What would you have done different in your 20s/30s?” or “What advice would you give to someone in their 20s/30s?” I love answering this question. After doing so a bunch of times I figured that I should write a blog post about it so that I can re-share easily. I think I have an amazing life. I’m financially secure; I have a job that is challenging and I like (as much as I could ever like a job); I have an amazing…