Now that you have yourself an excellent camera and lens, go out and take some pictures! read what you can about photographic composition, learn what you can about what it takes to get a proper exposure, but don't let any of it get between you and making pictures! You will learn as you go and get better with every picture you take! Don't be afraid to take chances or make mistakes. There are tons of good photographers here and on other forums, all with good advice, all with varying degrees of ability to encourage people to do their best, so don't be discouraged if you ask a question or post a picture and someone seems overly critical. They just want you to do the best you can, and we all have different ways of dealing with people. It's nothing personal. And remember to have fun!