1) Change what you can change, 2) Accept what you cannot change,
3) Know the difference
念心經 is good at 2) and 3).
念心經 will make you closer to 佛 --- enlightened (understand the world, people and self), take the world/person/self as it is, and be mercy.
If you want to do 1) better, you probably need to pray to a god or something, which I never tried.