Can anyone use it and if so can they use it on themselves.how long does it take a spell to work?

Sometimes a few minutes, sometimes months. Yes, you can use all spells on yourself. Most of them are about gaining a better understanding of your life path and your situations. For example, a spell cast for prosperity might result in the option of better schooling, so that you can find a better job. Very seldom does a spell happen exactly the way that you intend, and nothing is free. Remember, everything you ask for and envision comes back to you threefold, that’s why planting a spell on anyone other than yourself can be dangerous.