Starting to get interested

Yea I've kinda decided that I'm gonna learn how to play the guitar and take up some martial arts after EOYs. Watched some online lessons for guitar just now. The basic part seems ok...well I wont really know till I try it out for myself. Apparently guitar lessons are gonna cost around 100 dollars a month ._. Gotta find somewhere cheaper to learn. Or I wonder if it's possible to learn it completely online with no real lessons... Yea I know that's gonna be almost impossible and kinda hard for me (who has no experience in music whatsoever) but I managed to pick up manga without going for any lessons right? So yea I guess I'll see how it goes. Gotta concentrate on EOYs first. Guitar and karate later.