Healing crystals are energy boosters, they show you the path to achieve desired goals. An individual needs to embrace the path and work on it.
How fast the results come is dependent on an individual's hard work, efforts, and sincerity to achieve the goal.
Crystals carry universal energy in them, they help individuals to bring the needed change in their life in order to achieve their goals. Crystals are part of spiritual work, and any spiritual work will take its own time and the results are always dependent on individuals.