I would get a silver necklace for a job like this, as silver is a metal that is easier to enchant, I have one that is used as a reserve if energy.
All You really need to do us right a enchantment that clearly states what Ypu want. if it does not work then contact me and I'll try and help with it
i asked for good luck from my guardian angels and i lit an orange candle and the next day, i found a small stone with the word luck on it. try asking for a lucky charm from who ever, or what ever you believe in. :)