By 'better' you may mean that you find your material life unsuccessful. Other people are richer, healthier, happily married, care-free, etc. You feel like your life is a failure, and this makes you depressed. In all likelihood, those same people who have a 'better' life than you feel inadequate next to other people who have even 'more' than them. People get stuck in the 'If only I was smarter, prettier, younger, more confident' mode, and happiness remains a long way off. (Why do so many rich and famous people need psychologists?) So, if achieving material 'perfection' is impossible, what is the solution? Being happy with what we have. As the Mishnah says, "Who is rich? One who is satisfied with his lot" (Ethics of the Fathers 4:1).

This is a real challenge. We are bombarded by media messages subtly suggesting that if we acquiesce to consumerism, we will become all of those 'if only' adjectives. Not only that, the evil inclination within us doesn’t waste a second trying to get us to focus on how miserable our material life is, driving us to despair, and to forget about anything spiritual at all. If our happiness is dependent on other people or things, then it's a lost cause. Happiness depends on being happy with what G-d is giving us now.

A good piece of advice from the Chassidic masters is that with physical matters, focus on people who have less than you; in spiritual matters focus on those that have more than you. If you make this your hallmark, you will not only be happier but holier, too. When I think about people less physically fortunate than I, it makes me count my blessings. On the other hand, I also contemplate on the people I know who are more in tune with G-dliness than I am. They have clear purpose in their lives and are not tricked into succumbing to their materialistic whims, not to mention being truly happy and grateful for the lives they have. This inspires me to emulate their actions and come closer to G-d. So, if you meant that your life could be 'better' in a spiritual way, then I advise you to take a plan of direct action. Achieve more in your spiritual life by increasing your Jewish knowledge and observance. This works in the opposite direction of physical gains since you must never be satisfied with what you have spiritually.

Be happy with the physical blessings you have, find immense joy in the holy struggle that you are undertaking, and never cease to strive for more spirituality.