A better life has been achieved when we are no longer trying to achieve a better life. It means that we are content, as we should be, with ourselves and what we have. To be anxious for more or to envy someone else's life or possessions is self-defeating. We are then in a constant state of frustration, always hoping and waiting for more happiness.
So what is important? Enough, not more.
"Think of what you have rather than of what you lack. Of the things you have, select the best and then reflect how eagerly you would have sought them if you did not have them." - Marcus Aurelius (121-180)
There is, here and now, much to appreciate. There is life itself with friends, family, and everything that is naturally before us. We just have to look around and take it in. Perhaps it is time to make a list of all the good things we have to grateful for.
Are there people in your life that you would miss dearly if they were not here? When you go for a walk don't you see, hear, and smell, many things to appreciate and feel nice about? Like the flowers, trees, birds, and the clouds in the sky. A caterpillar crossing the sidewalk or your neighbor waving. A cute pup or child enthusiastically enjoying that moment in life.
"Whether in favor or in humiliation, be not dismayed. Let your eyes leisurely look at the flowers blooming and falling in your courtyard. Whether you leave or retain your position, take no care. Let your mind wander with the clouds folding and unfolding beyond the horizon." - Hung Tzu-ch'eng (1593-1665)
It just makes good sense to be satisfied and at peace with yourself and others, and to enjoy life now.