I'm entertained by your lie about time travel and changing the past. Why not go back to 1933 and buy 10 copies of Action Comics #1? One copy sold for over $3,000,000 on eBay recently. Or you could go back in time, talk to Buddy Holly, and convince him not to charter that plane. Or you could go back in time and kill Hitler before he takes power in Germany.
You could convince me that you're right. Just teleport yourself to where I live within 1 hour of me posting this. It shouldn't be that hard for someone of your... uh...powers.