How you found your first client as a freelancer?

Dear freelancers, I really wonder that how you accomplished that you found your first client.

I am an experienced senior frontend developer. I have worked full time jobs for 14 years but sometimes i want to get some freelance jobs to experience some other domains in our industry.

I have been searching clients for a month but i did not make any progress. So that i want to discuss below to this post why is this too hard or is there a way to make this process easy.

P.S. I hope it is right place to discuss this.