Backpacking tips?

I'm planning my first-ever backpacking trip, and looking to go to Thailand! 

bc its my first backpacking trip, im looking for any sort of tips for backpacking, cool places to go, good and cheap places to stay or eat, best ways to get around (should i rent/buy a scooter or something?) Im planning to stay for about a month. Im well-traveled, but never been backpacking. how much should i pack, what are some essentials to bring, whats the best type of backpack to have, just any sort of tips for a first time backpacker. 

thanx!!!!