help.... i need career advice

i dont know what to do. should i choose nursing? I like to study about health like the human body and diseases, and health is very important to me that I could apply to it everyday such as i could know what to do when my mom is sick. However, i don't really like the job. I mean i like the flexible hours i could choose weekeneds or certain time or just part time and job outlook is always open. But, i don't really like to clean people vomit or poops. People told me it is ok if u get use to it, and I feel i dont have motivation to take blood. What happen if i make a big mistake and involve in a lawsuit. Should i go to nursing school just because of i like to study about health then when i graduate i work patient less involved, or should i go to another health career path. Another problem is that i really don't like people tell me what to do if they told me to do something for a few times it ok,but if it all the time it upset me. Another factor is that I easily to be stress. what should i do? i want to go into health care but none suit me. give me advice on what u think is best and what careers u think would best suit me if i chose another career. I like to have flexible hours like part time not like 60 or 80 hours a week. I like not much stress. I like a job that is not management.

the problem is i narrow down my research career. Ultrasound hard to find a job here and long hours. Clerical work is not much money cause that is a issue for me. radiology is i afraid i will have cancer in the long run due to radiation. my final is dental hygienist but i am not sure.HELP ME I BEEN LOOKING FOR ADVICE FOR A LONG TIME TO FIND THE BEST POSSIBLE JOBS. i been in college and almost finish my general education course but still undecided on jobs. THANKS A LOT IF U REPLY!