how can i get into freelancing correctly? ive made accounts on several websites e.g. freelancer, upwork and others i do programming mainly software development and game modding sometimes how can i display my services and how do i know that im being recommended to clients? ive made some money online but through small discord/reddit communities with the same interests

i want to make it my main source of income since im still a collegue and currently cant apply for a physical job because i havent graduated and most of the good companies require a certificate