Yes it is possible to teach yourself guitar. I have taught myself not only guitar, but bass, violin, piano, saxophone and more! It does help too if you already have had experience with music before, so you should be able to master guitar pretty easily. If I'm 14 and can learn over 7 instruments in 3 years, I definitely think you'll be able to get guitar. And a good guitar can range anywhere from $200-over $1,000(if you're looking for something really good). You can purchase left handed guitars, too. Hoped this help! If you have any more questions, you can visit my site too at www.links2music.com