From a Pokemon Go Addict: I started about 2 weeks ago. I've been jogging almost every day because of how obsessed I am. If there were a show called "Pokemon Go Addicts" I'd be on it and probably in some straight jacket somewhere. Here is my best advice to you all Hoard a bunch of Pidgeys, Caterpies, or Weedles and get a lot of candy for that certain pokemon. Then, use a lucky egg and evolve them all. You'll get an insane amount of XP If someone uses a Lure Module, Don't just sit at that lure module, If you're in a car, drive around near it, coming back to it over and over. Almost every visit to it after leaving you'll instantly get two pokemon pop up. Get a Vaporeon. They're insanely overpowered and one of the best easily obtainable pokemon you'll get. If you ever want a Gyarados, Catch every Magikarp you see. You'll get there quicker than expected. If you're willing to spend money on the game, Buy incenses, Never Lure Modules. Most likely, someone in your area will use one for you, and Incenses are much stronger than lure modules as they follow you.
Welp, my phone's fucking GPS kept trying to find me while I was stationary in a Walmart parking lot. Costed me a fucking Onyx.