22nd Birthday

My 22nd birthday is coming up on the 15th and to be honest, I'm no where near where I thought I'd be in life by now.  I thought I'd be married and maybe even have a kid/be pregnant right now. But I'm not even dating anyone.
But that's not what I'm creating this post for! On my birthday I'm planning on posting a picture on Instagram/Facebook saying how I'm 22! I was thinking about including a caption (it'd probably end up being kinda long) basically saying I'm no where near where I thought I'd be when I turned 22. But point out the good things that never even crossed my mind that I've achieved like how I have my dream job, a dance teacher, and how I'm in a dance company at the college I go to and any other accomplishments I can think of. I want to send the message that although I'm not where I thought I'd be, I'm in a good place that I never even thought about.
But my question is, is that something I should keep to myself and not post? Or do you think it's a good thing to post that could maybe inspire people who may feel the same way as me? 
And if it is a good idea, should be specific and actually say where I thought I'd be (married with a kid) or just keep it vague by saying I'm not where I thought I'd be?
Thanks for any input! :)