the best trick would be............no trick
Go buy a book. You could pick up incredible books written by legends for half the price of any trick on the market today. At your age, try to learn stuff that known one else is. AKA look into books.
From Your Lips to God's Ears! as my granny used to say This is pure wisdom, pure truth, and how one actually learns how to do Magic vs. "tricks".
Given your age and likely allotment of free cash on which you can spend on magic, Books are the best course of venture especially if you don't have the Mark Wilson Course, Magic & Showmanship by Henning Nelms, Bob on Coins and at least a half dozen other BEGINNER'S books you actually NEED if you want to learn how to do Magic.
What do you know about Slight-of-Hand? What books have you studied on this topic alone?
Royal Road to Card Magic will give you a taste of what's involved with playing cards while Bobo will do the same for you when it comes to coins, but what about Thimbles, Billiard Balls, Silks, Rope and even Cigarettes (think on this; if you can manipulate cigarettes you can likewise control a pen or pencil with ease).
When you learn to work with ALL of these things you will start filling the shoes you claim to wear right now -- the idea of being a "Magician". You're little more than a sorcerer's apprentice at this point (unless of course, you live a charmed and fortunate life. . . it happens. If that were the case however, you'd not be asking this kind of question. Your handlers would tell you what you will learn. . . and then some).
Buy the tricks if you really think that's all your worth, but buy the books if you really want to go much further in life and more so, further in the world of magic.