Even a very little child knows that, if you want your image in the mirror to smile, the only way is to smile yourself.
The same goes for life: It is totally impossible to change whatsoever in this full-immersion holographic projection that we call “Reality”, if it does not correspond with our conscious and subconscious beliefs. To change something in the “outside”, we need to change “inside”.
So take care of the thought flows you allow yourself to surf on and drop (not change) all your belief systems. Only the Knowing of Who You Really Are: The Infinite, Eternal, entirely Complete, totally Free I AM.