Hi Vorhidin,
I'm 27, just 3 years a little ahead
I agree with Adam. Take it easy on yourself...with all respect to Steve, his 20 mins exercise is a tad in the extreme. Philosophers of all ages have wrestled with this great question all their lives; 'what is my purpose for living?'
I've come to see it as a lifelong quest to find the answer, rather than a one-size fits all MacAnswer that comes over the counter in 3 Easy Steps.
One technique I've found useful for me is to
define the answer, instead of finding it. If you can't find it now, might as well make one up, and make it a damn fine one.