Yeah...uhh...I've had a teacher my whole guitar life before about two weeks ago. It never "affected my style" save to make my playing cleaner and better. Really instructors do nothing but help, and having one will almost never hinder you. I have my instructor to thank for every skill I have on the guitar, but he and I have different soloing styles because...well mainly because he's better, but also because we're different guitarists. Every guitarist has his own style of playing, no matter how much he tries to clone another guitarist's style. It's like a fingerprint, man. Get an instructor and learn to fret like me...well, not like me...like someone good preferably.