What is the American Red Cross lifeguard training program like?

I live in Minnesota, Twin Cities, and I was wondering how difficult the program is? How long does this training take and is this training accepted out of state(California or Florida)?I am seventeen years old and I want to get a job that will allow me to help people and at the same time be proud of what I do. I swim all the time in the summer months and I feel I am good at it. Do you have to be an amazing swimmer to be a lifeguard? You don’t have to answer all of the questions and thanks in advance.