It is not enough to publish service ads only on freelancer sites, you must develop a marketing plan for your services and you must engage in communities that are specific to your field (as a web development), as specialized groups on social media sites, forums, etc. will help you gain experience from professionals in your field and get good work opportunities, and it is better, as Shasan mentioned, to create a Portfolio or a personal website that contains your previous works, and my personal advice to you as a former Freelancer is to deal only with trusted clients, and a contract must be concluded in which the terms, the agreed amount, and everything are written.

Good luck to you, and I hope there are people interested in your services here on the forum.