Just from personal experience....
When I started out my first experience was taking record albums (you know...Those ancient things), and learning them inside out.
Like literally taking Van Halens first album and playing it several hundred times until I could play it as well as he did. (the thought always being at the back of my head that he's just a human being too and no special than anybody else...So if he can do it...I can do it too.
Next step was to move on to other albums like Pink Floyd and learn how they put their stuff together.
I was totally self taught but on a couple of occasions I went to a teacher and tried taking lessons.
My own experience was that I usually ended up begin better than the teacher and the teacher kept stopping me and asking me how I played certain things.
I'm thinking at this point... "why the heck am I paying for lessons when I'm teaching him how to play"
So I never took lessons again.... except once a few years back when a guy blew me away with his playing and I took 4 weeks of lessons to figure out how he did it.
Personally.... I'm totally in favor of teaching yourself. You can get books from the library and bookstores.... learn off the net and go along at your own pace. Instead of relying on a teacher to slow you down to the level he thinks you should be at., (not to mention learning a bunch of theory you may not need)
My advice is to get a book that follows a curriculum for now and use this site to learn all the extra riffs you'll need to know outside of the general 'educational studies' that teachers force you into.
Guitar lessons should be about being able to play in bands and real life and not just learning scales and theory.