emotions

Why do we let emotions get to us? I have something very important happening in a month, and it could change the course of my future quite a bit. I am nervous about how it is going to turn out, I am scared it wont end the way it needs to, I am worried it will just be dragged on and on,  I am frightened it will go the wrong way and I could end up just EFed,  I am excited because it is taking me to cali for 2-3 days so I will get to see some friends for a bit. I am upset it may make it so I dont end up in CO for xmas with my family. I am happy if it ends up being done and over with!! its a lot of emotions to deal with, and I am just trying to figure out which one I am feeling the most of.. I think the excitement of going to cali, and getting to see 2 important people!