Experience is experience in my opinion, if you were working to the capacity of a nurse then I would say it is relevant. When I graduated I applied for every job posting even if it required multiple years experience. My resume at the time consisted only of my clinical rotations which I would clearly state the hours completed and the tasks preformed, always listing that you were shadowed by a Registered Practical Nurse/ Registered Nurse.
As for fear of working, its always there in the back of your mind whether you are starting out, or 20 years deep. If you care about what you are doing in my opinion it will affect you one way or another. Simply do your best and always seek out educational opportunities whether that being obtaining new skills or learning further health teaching.