to create a e-commerce website

Hello! I am looking for help to create an e-commerce website. The website will be selling physical products and I will be managing the inventory manually. I need the website to be integrated with a payment gateway so that customers can check out quickly and securely. This is an important aspect of the design, as I plan to offer customers a great shopping experience. If you have any suggestions on how to better optimize the website for a pleasant shopping experience, please don't hesitate to share them with me. Thank you for considering my project!