Getting back to school

I'm a 21 year old with a almost three year old and now expecting my second in January 2014. I am going back to school to better my life for my children and for my husband. I am going back to school to become a registered nurse. Unfortunately fright now the funds aren't there at all in order for me to even get to attend my classes. I hate to ask for help, but at this point I'm becoming very discouraged that I won't even be able to better my education at all. I appreciate any help that is offered.. More than words can explain.