First, you need to understand market strategies and the factors that help to influence day trading. Then, your next step is opening a trading account. Choose a reputable online broker or trading platform that aligns with your investment goals and temperament. Look for platforms with competitive fees, a user-friendly interface, reliable execution, and a large number of assets to trade. Ensure the platform supports your desired strategies and order types, such as short selling or using CFDs. Finally, verify that the broker or platform is regulated by the FCA.