You ask how to deal with anger, and perhaps the following tricks would be helpful (they have helped me).
If you have a secluded garden, or a room in the house where no-one will hear you, start talking. Say exactly how you are feeling and why. Be as unreasonable as you like. No-one is there to listen to you.
If that doesn't help, or help enough, take an old pillow or cushion with you and thump it hard while talking.
If you feel silly talking to yourself, write it all down instead, BUT promise me, when you have done so, to tear the paper up, or burn it. If you use the computer, hit delete, and check that the back-up file has been deleted too, then empty the waste-basket. I am sure, you don't want anyone in the family inadvertently reading this, some day.
You may need to try the talking it out thing more than once - a nice long country walk, where you talk to yourself while walking, if you like walking that is, I have often found helpful too.
Once when I was young and had been dumped by a boyfriend, I cleaned the whole flat in one afternoon, cursing him whilst crying into a pail of water. It helped then, not so sure, it would work now.
Hope you soon feel happier.