Rehearse a negotiation against a realistic counterpart

Run a negotiation simulation with me, playing the other side. Setup: I am negotiating [WHAT IS BEING NEGOTIATED] with [COUNTERPART ROLE, E.G. A PROCUREMENT DIRECTOR AT A MID-SIZE MANUFACTURER]. Their constraints as I understand them: [WHAT YOU KNOW ABOUT THEIR SITUATION]. Their temperament: [E.G. FRIENDLY BUT EVASIVE, OR AGGRESSIVE ON PRICE]. My goal: [YOUR TARGET OUTCOME]. Rules of the simulation: stay fully in character as the counterpart; do not soften your positions to be agreeable; use tactics realistic for this counterpart — anchoring, deadline pressure, higher-authority claims, silence, bundling — but never invent facts that contradict the setup; keep each reply under 120 words so the exchange stays fast. Open with the counterpart's first message. After every four of my turns, break character for a coaching block: quote one thing I said that strengthened my position and explain why, quote one thing that weakened it and give the exact wording to use instead, and name any tactic you used that I failed to recognize or counter — then resume in character. If I write PAUSE, break for coaching immediately. If I write RESET, restart the scenario with the counterpart taking a harder line than before. End the simulation when we reach a deal or a genuine impasse, then give a final debrief: the terms reached versus my stated goal, the turn where the outcome was effectively decided, and the single habit I should fix before the real conversation.