It won't launch

okay this is a remake of my other report:
What i expected to happen was
i could launch minecraft but
what actually happened was
It was Stuck in the launching mode
steps to reproduce
1 Press play
2 wait
3 ITS STUCK!
heres the problem
When i open the mineshafter launcher and play n wait for it to load and say launching it stops like its frozen in time i've waited a whole day for it to load, it won't work or launch,
I know
that other people have the same problem,
so if theres a way without buying the real game it would be great,
people have been telling me to buy the full game..
P.S
(u guys are awesome)