The thing I have found to be the most important in magic, is knowing yourself and believing in yourself. Many find it hard to believe that they can do/create magic. Others believe in the impossible. If you fall into the second category, you need a reality check. Shapeshifting, controlling the world or nature around you is improbable. Work on common sense. If you fall into the first category, here are some tips that might help:
If you can, spend an hour a day just meditating on your life and desires in a positive way.
If you want something, work on ways to get it. Things usually do not just happen without some form of encouragement or work.
Keep a journal and try to write in it daily. New things you do, people you meet and the things you sense around you. This helps you to be more aware of your life. When you are aware it is easier to sense a shift in your surroundings and to fix it if necessary.
Reaffirm every day that you can change things. You can do magic, you can and do effect the world around you. The majority of "Magic" is believeing beyond a doubt that you can do it. Without belief you can only hope. You must believe in and visualize your success in all that you do.
I also suggest that you read "The secret" if you have not done so. There are a lot of helpful tips in the book. They discuss the fact that what you put out is returned to you.