These things happen in life....but you need to be strong enough to withstand all these....sometimes its going to feel like there is no one you can go to....but you have yourself! Be strong for yourself, and whatever happens just hold on to yourself and believe that these will pass,....always think positively. You will feel a lot better. :)
If you want to open up to someone....look for someone you really trust — anyone from your family, any close friends, a teacher......
Also, as everyone else said, you can vent here in BT as well, there are many helpful people out here.... :)