Use the search bar in the upper right to search for "basics" read and practice the various techniques you find in the posts. You will also want to make sure you are casting the spells correctly, which the "basics" will help you achieve. Also, use your common sense, if a spell seems too good to be true (Like grow a pair of wings) it most likely is. A good way to use your common sense is too think like this: "If it is that easy/possible to grow a pair of wings, how come there aren't a whole bunch of people who have them?" Magic is subtle, it can change your life for the better, but it won't alter you physically, it can't change you into something you aren't. So just study, learn fact from fiction and you will be well on your way.
What kinds of magick have you tried?
If you've been trying things like astral projection, making charms and talismans, etc - just keep going at it until things finally start to click. No one said magick was Supposed to be easy, so if it's not then that is fine. You'll pick it up as you continue to learn and study and practice. Also, most magick will Never manifest in the way you think that it will, so keep an eye out and an open mind - things aren't always what they seem.
If you're talking about things like transformation, flying, or raising the dead... Well all of those are impossible to do with magick. And, to a certain extent, even science cannot help with those things. So, if that's what you're attempting, please stop as it is a waste of your time, and only brings about foolishness.