We all feel this way sometimes, philosophy plugs the holes though.
You can find all the answers within yourself.
don't take my word for it, just ask yourself :)
"i think, therefore i am"
Everything you do in life is faith, not religious faith, but faith that your car stereo wont explode, because theirs no way of telling if it will or not, till it does, or doesn't, unless you checked.
Be happy, have fun, no telling when it will end.