Just realise that this is going to end, just like any other difficulty that was there in the past. Time is a big healer, it swings past the far extremes and brings forth the inevitable, the present.
Besides just dwell on how could being engrossed in your pain do any good to you or others? Your life isn’t fair attitude can do nothing to make it good but it will only make it worse. Just drop it all and breath in and feel the joy in the air. A joy that does not cling to an object but is rooted in this very existence. Besides life is meant to be lived and not killed.
Wake up and bring a shift in your perspective. There is no end to pain but there is always a beginning to getting liberated from it. Fall in love with impermanance and embrace the perfect smile;)