Stress

Last year i just graduated from High School. A month after high school i attended a collage online. That was going good for me for a while,until i figured out that the career i was in wasnt the career that i wanted to go after,i was interested in a different career. So for a while i was trying to get finanical help,the school recieved it but they said that i needed to do more information on their school website. After a while trying to figure out what i needed to do,the school says that i need to make a payment arrangement with them. Recently i have been trying to find a job,i have put in alots of applications and still havent heard anything even though i call them back and check up on the applications. So i dont know what to do iam trying but the dept keeps adding up. i dont know how i can feel stress free with out getting myself down about the problem. So is there any advice on what i should do.