my advice is simple - just listen to, absorb and play everything you can. Learn where all the notes are, where they are an octave and two octaves above and your major and minor scales.
Most importantly, have fun. If you come across something you can't play, listen to some other stuff then come back to it and try again until you can. If it becomes annoying and a chore then you're doing it wrong. You want to be enjoying yourself.
While you're practicing, gear is irrelevant. I began at 11 and until I was 16 used a Marlin Slammer piece of sh*t precision copy with flaking chrome and never changed the strings through a Squier 15w guitar amp. You don't need anything fancy until you're about to start gigging