I am 25 also and I know exactly what you mean. I left home at 18, got married, and had children. I always knew that nursing was what I wanted to do but I also had to focus on working to help support our family. Now we are stable and I'm Sooo ready to finish up school. I say don't give up... If its in your heart than you should at least try. I would start researching and calling schools. Gdluck!