Life crisis

Nowadays, I am increasingly facing THE question in life which everybody claims to
have grappled with. There is increasing disinterest in work. I am totally confused
with what do I want to do with my life. I had read Paulo Cohello's "The Alchemist"
long back and wondered why am I not facing the internal urge that Santiago faced.
He seemed so clear of what he wanted to do with his life and I envy him. I have no idea where I want to go. Do I want to just be a rudderless boat drifting along with the world ? I certainly dont think so. Everybody and most of all I myself am getting impatient with my lack of direction. I am resisting making a stable set of decisions fearing that I will be stuck with it. I know for sure that I dont want to be in the sector I am currently in. It doesnt excite me at all. I tried to get interested in other conventional areas like finance( at one point in life not much far away I thought that finance is my only hope) but sadly that is not the case.
The extent to which I have known myself, I can jot down just two areas where I take active interest
(1) Space
(2) Music
These are the two areas to which I find an internal pull. But throughout my life, I never did anything towards this area. Primarily because there never was any promise in this fields. I followed the herd and though it seems that I have done quite well in conventional sense, I myself dont feel that I have done anything worthwhile. There is no satisfaction. Time and again, I read about how people left their regular well-paying job and started on their own pursuing their dreams, doing what they really liked, but i never could gather enough courage to do that. The financial safety is the biggest reason, coupled with family responsibility. Will I ever be able to manage both, family responsibility as well as my dreams. I have serious doubts over it.
I think I need to sit down alone and do some soul-searching, spending time to know myself. There is just so much going on everywhere in my life I am not able to think or rather I am avoiding to think..god knows...
One thing is for sure...I will be dead if I dont enjoy what I do
Till then
adios