Since you already have some materials, then I will recommend you take your time to read those materials which you already have, they really going to help you, also the only website which I will recommend to you is this forum, if you take your time to go through the forum, then you are going to learn a lot here, we already have existing threads already, just take your time to go through them, and am sure you really going to learn here, and if there is anything you don’t understand, and you can’t find more information about it, then you can just create a thread to ask about it, and am sure you going to get the answer which you need.