Positive thinking is the best way in my opinion. However you can also go by popular "superstitions" by carrying around 4 leaf clovers, up-right horse shoe, ect. If you want something more specifically luck based (Like luckier with money) I like to personally carry one of every coin in my pocket(or keep on my alter) to not be spent, with the intent of drawing more money towards it as well as the intent of having less expenses.
I believe by simply thinking positive and sending the energy of it to the universe so that it will come back to you. Those superstitions, in my opinion, are made by that way. People believed they bring good luck for many years so they have put strong positive energies into them. You can create your own 'luck bringer' item by having faith that it will bring good luck. The main idea here is how you think of it. Think positive, get positive :)
It helps to read the signs if you are having bad luck at the moment don't gamble or ecspect luck to come out of nowhere.you need to improve your mind you havn't got much hope unless you know how the mind works if you want money buy a money plant.if you want to be lucky in love life that will come with you.once luck comes you have to entrap it and don't let anyone steel it from you.i hope you find luck if you really need it.i will now take all the luck as i am a thief.