Hi and welcome !
Have a look inside at the circuit, see which section is connected to the
"tone" pot ..... you can make changes there to loose some "top" end and
re-voice it for a bit more "mids".
Doing this carefully will be fun and you'll learn something...
Bigger value caps = more low end
Smaller caps = more mid's/ high's.
Also using a small cap ( 2.2nf or 0.0022uf ) from signal to "ground" will roll off some "top" and putting a very small cap ( 47 - 300pf ) across the
pair of clipping diodes will take some harshness off the distortion.
Take a look and see what you can figure out, its not "rocket science"
( or you could just buy the fuzz central info, but where's the fun in that? )