Let's also say that you have absolutely zero experience playing the guitar and no musical knowledge to speak of. Typically, your best bet would be to find a professional guitar teacher and pay them for private lessons. You would tell them your goal and it would be their job to take you from zero to guitar hero. I guaranteed they wouldn't start by pulling out the sheet music for Dust in the Wind and saying, "Okay, here's how you play it." No, they would probably start with information that has almost no relation to the song you want to play itself, things like the names of guitar parts, how to tune the strings, how to care for your guitar. From there they would start teaching you some basics like how to read music, how to strum and pick, and how to finger chords. From there they would build that knowledge step by step until I could finally play it