Is it possible to work as a Web and UI/UX designer with 9 grades of education?

Question

IT education

I won’t say much about myself, in short: I
have a portfolio, work experience for 2 years. Worked in one IT company for some time, now freelancing on UpWork. The training was received by courses in their city and online (academic drawing, graphics, UI / UX design, web). I've been swimming in all this for 4 years now. At the moment, I'm 18.
Does it make sense to get a piece of paper about a specialized secondary in order to work in the future (at the same time, a piece of paper in general of a left specialty)?

Answer 1

The employer is concerned about how you can solve his problems and how you can bring him profit, and not your secondary specialized education.
Your portfolio is much more significant.
A piece of paper about education can be useful to you in order to "start the tractor."