When we want things to be a certain way, and they won’t budge, but we keep pushing — we develop stress and dissatisfaction.
To relieve this stress and obtain satisfaction, stop pushing when something shows itself to be unmovable, then accept its position.
How do we know an object is currently unmovable or whether we just need to try harder? Measure it by the levels of strain and discontentment the pushing produces. If the effort is an enjoyable challenge, keep pushing, otherwise stop.