Sorry for your loss.
No matter how old you are it hurts to lose a parent, they are there from the moment you are born, they are as constant as the sun being in the sky or the air in your lungs, you cannot even imagine existence without them... until you have to.
Again I'm sorry, don't be afraid to lean on your friends and family to help you through.
Starfire: "They are too numerous to fight. What shall we do?"
Robin: "Fight anyway!" (pb)