Tamara first learn to chill ;) bad things will happen in life. Good things happen also. Let me ask you a question, what have you studied in an attempt to accomplish a change in your life? You have to realize that Magick is like any other religion, it is all based on theory, belief, and written record.
If you were to go to a church seeking answers or solutions, the heads of the church would tell you to pray and read your bible.
It's the same here. If you are looking to cast spells first then you will likely get discouraged. You didnt walk into your first algebra class and know instantly what to do. As in all things you must seek knowledge first, once you have learned the basics you can then begin to see how the magick can help you.
First learn to meditate, learn how to calm your inner self. When you can do that you should be ready for a bit more. Locate the books recommended, they will help you with the first steps.
Dont try to cast while your emotions and thoughts are out of control. Your intentions and desires must come from a point of peace. These same emotions that tear at you now can be used to direct your purpose and fuel your desires. But first must come peace and control.