I would say concerning the TA, It is not a Book only arena. Pop in and just ask if anyone can help out. It is not only the Trainers who can help. As you have found out a lot of the players will help out where they can, so just by asking, you may get the response you are wanting.
Be patient though, it is not a short journey. This is not an arcade game. As you are finding out, it will take a long time to be able to go out on sorties and get kills. But be patient, and it will come!
Welcome to the addiction though!