afraid of change

i'm in a situation where i'm not happy with my current job but i'm afraid of changing my job. i'm working in nursing home now because i couldnt find any job in the hospital after i graduated and second because i have experience and comfort level working in nursing home when i was lpn. our facility provides a basic nursing care to our residents, lot of them are on comfort care. many days when i'm working i feel like i'm not using any nursing skills at all. i feel like i dont know what i'm doing or feel like i have no ability to take care of sick people. so i keep having this thought that i need to work in the med/surg for at least a year but i have this fear of coming out of my comfort zone and change to something different.

my other problem is that i'm a very shy person and english is my second language and i do have little bit of problem with communication. i thought that nursing home might be a good environment for me. i have this fear of leaving a job where i'm comfortable and good working environment where staff gets along pretty well and work together to fear of who know where i'll be jumping into. any advice?