What your IC is saying is important. Getting the anger and the pain out is healing for you. If they remain inside, it can be more damaging in the longer turn.
Watching tearjerker movies might be helpful - or just allow yourself to wallow from time to time and have a cry if you feel like it. I find my IC appointments helpful, partly as I tend to cry quite a bit at them!
For anger, I put pillows on the bed, and I bash them with a rolled up newspaper. I pretend they are H or OW, and I swear, rant and bash away at them for 5 mins or so. I read in a book that this might be helpful. Normally afterwards, I do feel a sense of release and calm. It is a way of getting in touch with your anger without causing harm.....tho I suggest waiting until the house is empty ;-)
Your IC is absolutely right. You are doing really well. It's a horrible situation, but your head is above water, you're looking after your boys and you are moving forwards. Those are the main things right now - remember to be compassionate towards yourself and acknowledge the progress you are making.
T 13 M 7 Me 48 H 46 SS 15 BD 7.14 PA D final 5.16 (H filed)
We receive & we lose, and must try to achieve gratitude & embrace with whole hearts whatever of life that remains after the losses - Dubus