Sorry man. I don't know you, but i wish the best for you. The only thing i can say is go on. Keep on the way and go ahead. The life continues and your mother will always be whit you.
And as leungtl said. Go whit your friends and family and share this moments whit them. pass through this time together.
We don't know each other, but I was touched by your candour. I hope you take comfort in knowing that people looking at your post can see the obvious depth of feeling you had for your Mother. Best regards to you.