A Good Indicator That I'm Aging

Other than my body sometimes (read always) making me feel like I'm pushing 70, I had a moment of something...clarity? today about my age. I recently joined Myspace, and my youngest brother (22 years old) is on my friends list. As I was looking over his profile and checking out his friends, I had a strange sense of how distant I am from these people of his (dare I say it?) generation. I tend to think I'm semi-hip (I sound like Marge Simpson), but looking over his info, and learning things about him that I wasn't totally aware of, reminds me that I'm almost 10 years older than him. I guess I want some of my youth returned to me. I don't think I'm a complete troll/dork or out of touch w/ the times, but something hit me. Obviously, I'm having issues describing it or interpreting it. I guess I envy him. But I'm not sure how. Perhaps I'm becoming more set in my ways, whereas he still has several more years before he "settles" on something. Does that make any sense? Of course I know that I can still change, but let's face it...it gets harder as you get older. You've had a lot more time to grow accustomed to the way you eat, exercise (or don't exercise), shop, sleep, have sex, watch TV, listen to music, clean, or do laundry. I guess I'm feeling the symptoms of my occasional flare-up of late quarter-life crisis. No, I'm not even close to mid-life crisis (unless I don't change my diet!) Hell, I'm babbling on. I suppose it's good that I'm not able to completely express my feelings, cuz that means I still have a lot to learn, right? Life. Don't you just LOVE it sometimes?