The question posed was - Would you trade your life today for your childhood dream?
I can't say that I had a childhood dream in particular. My dreams change constantly, and that has been true all my life.
I don't put much stock in the "future" - never have - there's only right now for me. We have NO guarantees about having a future so why invest your energy in it? You can waste all of today doing that.
Not even God changes the past, and the future may never come, so I prefer to just focus on this moment right now and enjoy it. You can spend your life belaboring the past or longing for the future or wishing away the present.
I just "live" in this moment, am thankful for the dreams I've gotten to live already, assume others will come my way in good time, remain grateful for the experiences that have given me the perspective I have today, and let the rest of it fall where it may.