You aren't alone, I am in EXACTLY the same boat as you! I'm almost 26, unhappy with my full-time job and have been thinking about becoming a nurse as well. I have the same concerns as you, the thought of being nearly 30 by the time I finish worries me too. And whether I just want to pursue a Diploma to become an enrolled nurse, or do a Bachelor of Nursing for 3 years to become a registered nurse. Not to mention reading about the bad case scenarios with nursing VS the high points! It's all so confusing. All I know is I want to help people :) Are you from Australia?