i am a fool who can't decide wat i want....

I have just started college this week n yet i am already worried bout this n that, worried bout di i choose the rite course, am i gonna be a lawyer or accountant?, will i get a job in the future? , can i keep up with the assignment n the tutorial? did i make a rite choice in going for arts instead of science? all this thoughts really troubles me n the more i think about it the more my head feels like exploding! i juz can't stop myself from having all this foolish thoughts... i hope by the next few months time i am able to feel my much better...