Many people are also missing their Mother this time of year. The fact that you miss her, shows that you really LOVED her. And if their is any chance she is looking down, what would make a Mother more proud? :)
For those with a poor relationship with Mom, we are all human. We are only as good as we want to be, or our surroundings and experiences allow us to be. Somewhere inside all of us is the little child we once were. Know that that little child has hurt feelings sometimes, and needs hugs, and forgiveness. I was once a poor example of a Father, I will ask my son forgiveness for this when he is able to understand.