You are probably still grieving your mother; when we love someone we "invest" a part of ourselves in them and when the relationship ends, we grieve, which is time and energy spend getting some of that investment of ourselves back into ourselves so we are more whole again.

Maybe you could go volunteer somewhere and just gently get to know others and their needs and get to know some people with similar goals, coworkers, and listen to them and share some of yourself and your pain a bit, gradually get back into the swing of life? TV can't give back.