If you're seriously considering launching a P2P crypto exchange, you need to focus on several key aspects. Security should be your top priority—cutting corners on smart contract audits and DDoS protection can lead to massive risks. Another crucial decision is choosing between DEX and CEX: while DEX offers more freedom and privacy, CEX provides better liquidity and regulatory compliance. To successfully open P2P crypto exchange, you also need to navigate complex regional regulations to avoid potential legal issues.