My alt is in 7th and I am confused about it's age being 0. I don't know how to make it normal. :(

I've been trying to get a fishing rod for a while now and saw something on the auction house that looked like a white hat but was named fishing rod. I bought it thinking it was a package and it did nothing. I have no idea if it really is a fishing rod and I'm doing something wrong, or if it is...

Question 1: In the library do we need to RP the books or are there actual books that we can check out? Question 2: Swimsuits. Do we need to change our skin into one or is there an item? Question 3: Best ways to earn money?