The ghozt of my grandmaz want me 2 believe in God and go 2 churh?

We r an athiezt family but wen my grandma die her spirit came upon me and told me 2 convert to Christyanity cuz my grandma iz a slave for the devilz. she wantz us Atheizt family 2 be converted to chirstyanity so that they can live peacefuly in heven afta we die. she say it iz very difukult livin with evil doer in hell. i want 2 go 2 heven and not hell. I wan 2 change for my grandma. help me?