anxiety???????

i saw the movie frozen today....it was GREAT!!!!!!!!!!!!!!!!!!!!!! i loved it!!!!!!!!!!!!!!!!!!!!!!!! for some reason today i have a little anxiety.....i start school on wednesday and maybe that's why, but i'm not sure.....i kind of feel like i need to do some deep breaths, like right away or i'm gonna go insane.......i can feel the tension in my shoulders and neck....i feel like crying and i don't know why...i think i'm just nervous about school....i mean 30 hours of practicum is A LOT to do in 16 weeks, but i did 20 observation hours, so i know i can do 30 hours on practicum....positive thinking!!!!!