Welcome to a journey that can take you to many wonderful locations. Fortunately for you Lady Mimi has many great books that can help you on your way. Don't worry about feeling weird. I've been practicing one form of magic or another for over twenty five years steady and another fifteen or more before that and it felt pretty weird when I began too. The best way to reassure you is the phrase "you fake it until you make it". By that I mean, do the very best you can. Study, practice and put your heart into what you are doing. Keep a journal. Later, maybe six months, maybe a year later when you turn around and look back along your path you will find that you have made impressive changes in your life. Ask Lady Mimi (or myself if you wish) for guidance. You're doing fine.
All those names have been used and can be used. Wiccanism is slightly different from magick (if you mean *ritual* magick). Call Lady Mimi (after noon usually) and I am sure she can help you with your questions.
Best wishes on your new Path.