What do you do to occupy your time? I really have trouble falling into a rut of rumination over similar resentments over my perceived unfairness of life. This happens the most frequently - and the most pwerfully - when I have a great deal of time on my hands. The busier I am the less often I have these thoughts. So I guess what I'm trying to say is that the more occupied you are mentally I think you should see a reduction in the resentment you feel.