Instead of denying ourselves certain pleasures by saying “NO”, making ourselves feel that we are denying life, or pushing away good things, ask ourselves: Will this bring happiness?
Most likely, if it is a materialistic pursuit, such as getting new car, a new laptop when we don’t need one,etc… The answer will be no, and that will give us better ground on which not to pursue it, hence streamlining our desires, in turn leading to true happiness instead of momentary pleasures.