"Life is like a box of chocolates, you never know what you're gonna get"

Have you ever worked really hard for something, devoted all of your free time and physical being to becoming better at something, and then not receive what you believe is a just reward.  I always feel that I go the extra mile to be good at everything I do, and yet, I do not feel that I receive a just reward.  I suppose this happens to everyone at some point, but some people just seem lucky and ALWAYS get what they want--without even working for it.  I'm probably just being bitter and ranting, but I have to get it out of my system.  In the end, I know that I should be grateful for what I have and what I have accomplished, even if it isn't what I originally set as my goal.  If I don't achieve my goal the first time, I need to try harder for next time, and hopefully I will achieve it.  I am truly grateful and thankful for my achievements, and happy with what I have accomplished, but is it wrong to feel robbed or cheated from your goal if you have worked so hard, put in the hours, and honestly believe you deserve it?  I think it is reasonable, but maybe I need to count my blessing and be humble--which I hope to be able to do after getting these thoughts out of my mind.  I think that as I get older and experience more struggles, I become more cynical about the way some people never work for anything and always come away with more than those who work so hard to get half of what the under achievers receive.  Now I know that is a harsh comment, but I've seen it happen far too often and it makes me frustrated.  The only way to get over these frustrations is to work harder and accomplish my goals, and hope that I can prove that you need to work hard to accomplish your goals.  Perhaps I just wasn't meant to accomplish my goals yet, perhaps I need more time to work harder and prove my capabilities.