Because ATM I am waaay too broke for a guitar/bass amp that has decent distortion, so does anyone know if theres software that could help me out with this?

I know what I want the songs to sound like and everything, but I'll forget them eventually, so I want a way that I can record them and crap with the similar distortion and sound to what I want it to sound like, so when I try to replay it when I finally do get a good amp, I can play it the same way as when I thought of it.

Because if I just have the tabs and crap, I can play it, but I can't really figure out how its originally suppose to sound as in distortion, pitch wise.