Hi, there are thousands of possible ways how someone could find their first customers. I’m curious about how you actually found your first paying customer/s?
Friend of a friend needed some web dev work done, which I did very cheap. From this one client I picked up more associates of theirs. I don't freelance much now but I never found a better way of marketing myself than word of mouth. I did some charity work which picked me up a lot of paying clients and paid for itself many times over. Good luck!