It sounds like you feel needy because your mother wasn't the nurturing, comforting, warm type. You search for what you didn't experience but have seen others have to varying degrees. Working on the issue in therapy usually involves acknowledging what you missed, dealing with the feelings of loss, and any other feelings like anger, and developing ways to mother yourself and accept maternal influences in your life from your therapist and community you create, as well as other influences. In my case, for example, I've incorporated feminine-based spirituality, teachers, support group members, therapy, books, and of course, lots and lots of work self-parenting to fill that hole over the years.