"Do or do not there is no try" I like those quotes but I would be careful about Emerson's works. He was a Transcendentalist. He believed you could transcend the sin nature by being in the right environment. Beyond that we should realize that we don't have an infinite time to do things and God could come back at anytime so. "Do not put off tell tomorrow what you can accomplish today."

I'm still trying to fiqure out what I want to be when I grow up.  I'm beginning to think growing up is over- rated.

I have those kinds of thoughts all the time, but then every once in a while I'll be walking outside on a nice day, and realize that there are good things going on all the time that I should be thankful for.   There's nothing wrong with looking forward to the future, but it's a good idea to remember to pay attention to the present as well.