No turning back now!!!!!!

As of about 5 seconds ago, I am officially heading in the medical sonography career direction. I dropped my Physics II class which is necessary for PT school so THERES NO TURNING BACK NOW!!! I am scared and relieved at the same time. I feel good about my decision but am also worried that something will go wrong before/when/after I apply! WHAT IF I CANT COMPLETE ALL THE NECESSARY COURSES IN TIME?? WHAT IF I DONT GET INTO THE PROGRAM??? WHAT IF I END UP HATING IT??? Ahhhh! I know I am worrying way to soon for that since I dont apply until March but WOW, this is a whole new road that I dont know much about and its S.C.A.R.Y!!!! Right now, Im going to just worry about Fall semester and making it through without killing my roomate (more on that later- you guys need to be filled in!!!) Going with "R" to her appointment yesterday made me that much more confident that this is the path I should be on! Finally! One thing to check off my list :)