There are not any words I can say to make you feel better. Try not to cover up how you feel,cry when needed,scream if you want,laugh or smile when you talk about the good times ,stay close with your family and friends. It wont be easy you will never forget but in time it gets easier.
Unfortunately I have lost several very close family members including a child so I know how you feel. My heart goes out to you and I'm truely sorry for your loss. My thoughts and prayers are with you and your family.
With sincere sympathy,