It's not unusual for grief to have a 2 year timing.  As @primek says, it's about acceptance - not about liking it.  We have to reach a space where we are not raging or despairing but just accepting and allowing ourselves to mourn - then moving on.  Something fundamental has broken in me - my trust in my own body - and I am now outside of the mainstream of people.  They don't get it.  I think you are right to try to give yourself some space.  Speak to your psychologist, or get a new one if you need to.  You need to get back to living but I think that you also need to acknowledge what you have lost and that you are allowed to be sad and angry about it - and fearful, too.  And please don't think that I am saying this from some lofty position...I am grappling with it, too.