learn how to work with energy first off
you might wish to work on creating psi balls to help. start by cleansing the amulet in question, simplest way is to place it in salt water for a few seconds. take it out, pass it through some incense [like cinnamon if its to attract luck] then hold it in your hands, feel energy entering your body, travelling down your arms and pooling in the object. [perhaps even visualize a glow say blue for healing or yellow for friendship] and visualize your desired outcome, while also saying a chant or prayer for what the amulet is for [like protection or wealth] when done you can leave it on your alter overnight to be blessed or on a windowsill to charge in the moonlight.
over time, you could simply charge it and say the chant, but the first time you really should cleanse it first.