Lol, it’s this simple, I think, it’s been forever since I started doing this, learn some basic chords, listen to music, and play along with it. You’ll be surprised at how much you can finger out on your own, what you do will be wrong most of the time for awhile but slowly you can transcribe with your ear what’s right and wrong. Can’t stress enough that learning some basic theory won’t hurt you, but help you better understand what you’re doing, it’s not the gospel, it’s literally a tool to be used when you need. In western music there is only 12 notes, it won’t effect you negatively to learn them.