Where did this come from?

One moment, I feel that I have everything planned out and the most exciting thing is that I feel they are supportive of it all-then all of a sudden:Boom, there seems to be a bomb dropping on me-what is it with this sudden turn in direction=why must things change to be like this? Why cant I for once decide what I want-wht must it be looked at like a waste of a year and not a break? Why cant they listen and for once. Support me? I guess I got too damn excited abt somethung that I dont think would ever happen-what do I do?