sister i know how much hurted you are!...
oh god forgive me, and may allah forgive your mom, and give her jannah! sis, she is happy over there, her graveyard will be so spacious inshallah!...
plz sis, we all have to go, our soul will return to allah!...
one day you will go, i will go, and every one will go... be happy for your mother left such a bad world, in which we will only get pain, and now she is happy....
you might be feeling sad, but arent your happy for your mother will go to jannah (inshallah)...
pray ever iftaar for your mom, allah says that when we pary to allah at the time of iftaar, allah will surely agree your duaas, and he will surely give your mother that highest grade of jannah! ...