Ette, I can so empathize with you! My youngest sister died "supposedly" by her own hand just 7 weeks ago. My BIL whom I thought we'd been close to all these years never called any of her family to let us know, never asked us about the arrangements, nor have we heard from him since...including her own daughter. My questions and anger towards this man and someone else have, at times, gotten the better of me but at some point I realized that it was doing me more harm than good.
BeautyMarked is so right when she says that you need to focus on your own grief. Hanging on to the anger of what others are doing only gives you something to focus on besides what you really need to be focusing on and that's your own grief and your own healing.
I also lost my father when I was young (20 yrs old). It's devastating, can change the way your entire family functions but you have a choice in how you handle it, Ette. Don't let it be something that balls up inside you and become something unhealthy that you nuture and, eventually have to deal with in therapy down the road. Anger is part of the grieving process and through grief counseling you can better pinpoint who and what it is you're truly angry at.
Finally, I think it's so great that you reach out here and I hope you're doing it with friends and via other ways at home. I have never been good at that but know that it does help. You're one step ahead of the game by being able to talk about what's going on and how you're feeling about it.
Like BeautyMarked said, if you're not getting relief and help with your current counselor, try another grief counselor. Also, grief counseling in a group setting also helps. It's difficult if you're not one that opens up easily but it helps to show that what you're going through is (and I hate this word) normal considering the circumstances.
Thoughts and prayers to you, Ette. I hope you recieve some emotional relief soon, girl.
Lisa