Pleased to meet you, won't you guess my age...

I will be 40 tomorrow. No, that is not a typo. 40. I am not sure how I got here. Just doesn't seem quite right. I've been kinda out of it the past few days. My mind has been elsewhere. I am wondering if this 40 thing bothers me more than I realize. I know by my age you are supposed to have accomplished certain things in life which I have not. Is that bad or did I just choose a different path?
I guess I can't really worry about things like that. It is what it is. Besides, things are better for me than they have been in a long time. :)