You don't have to be a Satanist to achieve what you say you want. Actually, true white magic is far more powerful and effective that black magic.
Black Magic hurts people, and most of all, hurts the magician himself. Why? Because if you curse someone, you taint your soul with hate. If you use and abuse people, some day, someone stronger will use and abuse you.
In Black Magic, you create what you believe in. It's your choice to believe in Satan, but Satan does not actually exist until you create him. Satan is not real. You can create him, though. The point is - do you want to create the Enemy of Mankind?
White Magic, on the other hand, is not about healing people and receiving nothing, as the movies show. It's about controlling yourself and everything around you. A White Magician never fails for White Magic is true and will always be so. It will give you everything you want and will ask you nothing except for your independence - even from your own desires.
People tend to think that Black Magic is freedom because it allows sacrifices and sexual rites and because it claims that everyone must do as it pleases him/her - but that's not true - you are slave of your own wishes and fantasies. Get rid of them, and White Magic, being Truth, will set you free. Really Free. Free in a way you have never felt before, and which I cannot describe for you must try it yourself.