1. Pay attention to the people around you. You will find that everybody has something to worry or complain about, not just you. It's easy to focus on those who seem to have it all, but you never know what's going on inside. They might look happy, but they might be miserable as well. Don't look at others and think "I should have it like they do." Look at those who aren't as fortunate as you are and take note of how blessed you are. Count your blessings. If it helps, consider volunteering or start a friendship with someone who is not as fortunate and find small or gradual ways to help them.
2. Practice acceptance. Stop dwelling on how things should be, what could've been, and what you don't have. Recognize what you do have--whether you like it or not, it's yours to keep or to change. Accepting your lot in life is not about resigning yourself to unhappiness. It's about not wasting time wishing for what you don't have. You could try writing a list of things you want, and things you have. Consider the thought that many less fortunate people will want some of the basic things that you have.
3. Become a problem solver. Use your lemons to make lemonade. Get in the habit of asking yourself how you can turn the negative into a positive. The most successful people in life, and those who have the most to be grateful for, are also those who've endured tremendous trials and managed to persevere and turn it all around.
4. Learn to see hardship as a chance to develop character. Imagine yourself looking back ten years from now and recounting your difficult circumstances, and being proud of how you handled it and worked through it.
5. Develop a gratitude journal. It's pretty simple. At the end of every day, write down five things that have made you happy or appreciative that day; not necessarily big things, even small ones count.
* For example: 1) nice weather, 2) being thanked by a customer at work, 3) my pet, 4) having people who love me, 5) a funny joke or a song you like.
6. Take joy in the small things. Blow bubbles. Walk the dog. Get lost in the park. Goof off or watch a funny movie and have a good laugh. Life's treasures are the small pleasures; give thanks for each small gift you receive!