I would recommend looking up charms on the website. I will give you a very, very basic good luck charm creation recipe, also, you can wear a rabbit's foot, it is a very powerful good luck charm, or a four-leaf clover, there are more.
You will need:
something that you will where, like jewelry; maybe a ring or necklace, amulet, or watch
focus and concentration
belief in yourself
Take the item and put it in your dominant hand (the one you write with normally), now close your eyes and picture a blue aura around yourself. Now visualize this blue aura as being filled with luck. Now, see this blue aura funneling into the item in your hand and becoming incased, providing luck. Also, say out loud, or in your head, "I am programming my aura to make this (insert item name here) extremely lucky, it will cause me good luck all of the times that I wear it and disperse the bad luck around me." Now picture this blue, lucky aura being sealed off inside the (insert item name here).