How to make noob cash in nullsec?

Hey!

I'm new and I've joined my corp down in nullsec, they haven't been too useful in how to make money so far besides telling me to "Salvage Whore"

How exactly do I make isk? I'm in Goonswarm space (allied) but still don't really know. They keep saying I can make loads more money in null than high, but I don't have to go on :/

Cheers!