Iamalone - I'm sorry for your loss dear.
I believe that time heals all wounds. While some, take more time than others, it's allowing yourself to heal from it & be able to try & keep moving forward. Maybe your mom doesn't like seeing you like this & is trying to encourage you; her own way? I know it must be difficult what you're enduring/going through.
You know, we are all here for you. I hope, in time, this becomes a bit easier for you.