It's sad that you lost you mom and I offer your family my sincerest condolences. I'm thankful for her long and good life and to hear that she went peacefully to God and her loved ones on the other side.
Remember, Eternity is a looooong time. You'll see her one day and she wants you to stay here as long as you need. She will be there in your memories always and when its your time she'll be there to welcome you and show you around.
Smile and think about it, I know it ain't easy right now.
and I bet that old horse of hers is happy to see her again too.