Radhey ji, it’s good that you are able to reconise your problem. Half of the problem is solved. Rest half will be done with your strong will power. I think you should purchase one good pen yourself everyday. After sometime you will have many pens of your choice and that would make your desire to steal pen fade away automatically. You know when you don’t have something then your heart long for that thing but as soon as you get it, the fascination goes away. I think it will certainly help you.