I start how freelancer few months ago(2), already take some jobs, is not late..and if you have several years of experience this is good. Just a tip, learn some new which are few people making it, im Rails developer and have many people doing it but PHP is 100x more, so i recommend get experience in some language/framework ascending like elixir/phoenix, go language, cowboy, erlang,javascript(have tons of frameworks like ember), so learn some new and make many apps using this, you can take 4 years of experience in some months and put this is your description/CV of the job.

Good Luck.