Well I am a student, I don't have money or room for a real piano. I'll definetly buy one when I'm rich in the future :3
But you can adjust the volume with presses on a keyboard to, at least mine has that function.
Also if you got any easy beginner pieces to share, that would be great.
There's a ton of "Easy Modo" packs out there on Youtube. And yeah, I started with Green-Eyed Jealousy as part of my medley. If you want to try something a little more difficult (but not by much), you can try
the first part of Maiden's Capriccio (before the breakdown, unless you have a teacher to help you with that part).
Emotional Skyscraper is easy if you (over)simplify the bass part, Doll Judgment is okay if you simplify the melody to just the top notes, and Phantom Ensemble's melody should be trivial once you get the hang of it (as well as the bass).
This sheet of Nostalgic Blood Of The East also sounds interesting.