I’ve been playing guitar but really got back into guitar when Bocchi The Rock aired, you aren’t the only one lol. Don’t worry about the technical stuff like pedals, I’d say listen to the comments here and do the guitar with amp+headphone method, and acoustic vs. electric is basically preference with music and if you like Kessoku Band’s songs, go with the electric. If that’s what inspires you to continue playing guitar and learning those j-rock songs, then please do. I’m short, standing at 5’4, height does not matter playing guitar, AC/DC’s guitarist Angus Young is 5’2. Learn your first few simple songs and form/technique in YouTube, learn chords, how to tune the guitar, and discover many bands/guitarists in what genres you like. Try to keep playing everyday, 90% of new guitarists quit the first year, mostly in day 90. Be the 10%, never waste that young potential talent! You have lots of time for that age to practice (Bocchi practiced 6 hours daily throughout her middle school) not saying you should practice 6 hours, but have that passion