Most times anger is just a cover up emotion. It is much easier to find energy from anger than from sadness or anxiety. Finding releases for your anger is good but it will not truly go away if you don't get down to the root of the problem. You also have to remember that it is okay to be sad, and it is okay to ask for help. I feel that it can be very hard to find the root of the problem by your self. Ask for help from parents, siblings and friends not just professionals (although they are good too). Whoever you talk to may not even have to say anything, sometimes just working it out out loud is all you need to do.
This is the advice that my mother gave me, do you have any advice on how to deal with your anger in an emotional way and not just finding a physical release?