One thought I would contribute regarding negotiation is that, while you might not get what you want, you can usually get something. If they can't pay you, then

One thought I would contribute regarding negotiation is that, while you might not get what you want, you can usually get something. If they can't pay you, then ask for a title or autonomy or a better project. These are "free" but can be very valuable, in the long run, for your career. You almost never get everything you want out of a negotiation, but you can almost always get something.