I’m very tired today, and tomorrow’s going to be worse

I’m very tired today, and tomorrow’s going to be worse. I have to get up really early to go substitute teach a class for church (Friday morning, you ask? Seminary for the high school kids. I have no idea how I did perfect attendance for four years – amazing).
Today? Let’s talk about being a “grown-up”. It’s hard stuff, especially when I still think “When I grow up, I wanna be…” all the time. I don’t FEEL like a grown up. But, when I look in the mirror, there it is, my grown up face staring back at me with the grey circles under my eyes and glasses. I’m married, have a son, own two cars, have a job with responsibility and pay a mortgage every month. I guess that qualifies me as a member of the adult club. It’s not what I expected. I thought I’d be wise, and know how to do things. I’m not, and I don’t.
This is all stemming from a realization I had a little while ago. I realized that who I am now is probably who I’ll be for the rest of my life. I always thought, deep down, that there would be some great awakening where I would suddenly feel mature and a part of the great flow of grown ups in the world. I figured I had time to be stupid and lazy a little while longer. Now, I’ve realized I didn’t have all that time, and that I’m pretty much the same guy I was when I was 19, just slower, fatter and with more stuff to do every day. I’m no more industrious or “together” now than I was then. I still have the same problems with time management, responsibility and authority I had then. I still feel I’m “missing something”. Like a part that makes the adult me wasn’t included in the original package. The real problem is I don’t know what that part is, or how to fix it.
This all sounds pretty bad and unhappy. It’s not. It’s just puzzling. I’ve been reflecting on decisions I’ve made, the experiences that got me to this point, and wondering how it all happened like it did. I truly like where I am. I love my family. I like my job (love it some days). I am content with who I am at its core. But, there’s still that nagging feeling that something’s not there that should be.
Ok, all this navel gazing is tedious. I’m done for now…