I feel your pain man. I'm right behind you at 38. I seriously want to follow my dreams. Everything comes at a cost. Are you willing to pay it? Are you willing to sacrifice? Are you willing to be focussed longer than you want to be?
I would (and do) try to be wise about your dreams though. I wouldn't spend all my savings. I would set a 5 year plan- where you see your self in 5 years and then break it down into what steps have to happen to get there. Then start tackling each step. You may end up somewhere you didn't expect or learn some things along the way that change your vision but it's the journey that makes you feel alive.
Oh, and you should really read this book. I did and it really helped me define some things and gave me great advice. The author Jon Acuff comes from a Christian background and uses some of his experience in examples but don't let that turn you off, it's not too preachy and has some really good advice for someone EXACTLY in your shoes. http://www.quitterbook.com/