Reading between the lines, I'm guessing you're about 18-20 years old and you've never had a job outside of your freelancing activities. If this is the case, get

Reading between the lines, I'm guessing you're about 18-20 years old and you've never had a job outside of your freelancing activities. If this is the case, getting some agency experience could be useful to you, both in terms of your CV and in terms of skill acquisition, particularly workplace social skills. That said, this really looks like a question that only you can answer.