Crystals are very effective, and transmit a powerful energy. However, you need to tell your crystal how you want it to help you. After cleansing it by washing it in running water, send loving thoughts to it, and say out aloud: “I dedicate this crystal to (state your wish)." Repeat your dedication everyday until your wish manifests.
Citrine crystals are best for wishing and luck requests because they are energisers.