Volunteer Nurse Resume If I Volunteer At A Hospital, Can I Guarantee Myself A Job?

If I volunteer at a hospital, Can I guarantee myself a job? - volunteer nurse resume

I am a 2nd Years nursing student and can not return a job as a technician in a hospital patient care. It is very difficult. If everyone in my class who told me about the work. My teacher told me that my CV is a false problem
When you volunteer, you think you can ask them and they will give me work?