When my husband died very unexpectedly and way too young, I struggled with being able to feel my grief. I finally realized that my struggle was with the fact that it was so immense, I was terrified to open the floodgates to see what was going to come out. I finally found a grief counselor to give me a push. It turned out to be a very small push -- but so important.
You need to feel those feelings, and maybe your fear is the same as mine was -- it's just a lot to process! And it will happen in fits and starts. So yes, do go, and take on as much or as little as you're ready for. But don't be afraid to let it out. Sooner or later, you have to do that.
I wish you all the best with facing your pain.