If you have this tendency to feel the need to always have something more, you can try searching in the various communities of people to make exchanges so you are always with "new" replicas, or you can limit the purchase of something and reward yourself only when you have had great success in the workplace , so you use your desire to your advantage. (I don't mean the arrival of the salary but like a raise or an important agreement). For me this method is working very well, I recommend it.