"As I’ve said before, we’ve learned many lessons during our time here, but if there is one I could share with you, it would be the difference between greed and happiness. It is alright to make your own happiness a priority in your life—actually, it’s quite healthy. It’s not greedy to try to make yourself happy. You just have to properly understand the difference. Greed is the acquisition of enjoyment by taking what you do not have. What most people forget, is that when you get whatever it is, you’ll only want more. Greed only begets greed. Happiness is enjoying what you have. Happiness is learning to be content with that which is good about your life. There will always be something you don’t have. There will always be something you could have done better. There will always be things you fail at. Being happy is remembering that despite this, there is still plenty to enjoy in your life. If there’s anything I can ask you to do with your short time on this Earth, it’s to be happy."
Further, from a piece of writing I did:
"I have seen many people who fail to prioritize their own happiness. I work very closely with someone who does so. They work tirelessly doing something they love, and they are quite good at it. They help countless people, and they do a fantastic job achieving everything they want. But they are miserable. In everything they do, they only see failure. They see what they have not done, and what they did not achieve, and they see the same in the actions of others. Despite their successes, which they readily recognize, they fixate upon that which they did not do. And so, no matter how much they achieve, nor how successful they are, they will always have a reason to be miserable. It’s horrifying. I cannot imagine living my life in this manner. It would be a life without purpose."
And so, try to remember, there will always be more. There will always be something you didn't do, or could have done. But focus on what you did do. How you have succeed. Accept it, and enjoy it. There is no greater standard to live up to. Love what you've done, and be happy :)