Hey Rookie :) . I'm 34 and I'm still trying to figure it out. A smart person once sang "Age ain't nothing but a number". Take it slow do all your pre-requirements. Like that other person said if you can volunteer do it. But above all pick the right institution they are not all the same. Do your homework and do it well. Check, double check then check it again. The critical thinking comes with reading the material the "ah ha" moment does come and if it doesn't well it doesn't. Listen, your young you have nothing but time. Know that nursing school is one of the most stressful situations you can put yourself in i.e. I have no hair. Don't do it unless you are willing to sacrifice your friends, family, social life, tv, movies, you get it. I wish you the best of luck.