It is one of the most common questions in surfing, and almost no one gives you a straight answer. Beginner, intermediate, advanced: nobody agrees on what those words mean.
Why the labels are useless
One surf school calls you intermediate after a week. Another says you are a beginner until you can do a cutback. The words have no fixed meaning, so they cannot tell you anything useful about what to work on.
If you do not know where you are, you cannot know what comes next.
A more honest test
Forget the labels and ask what you can actually do. Can you catch unbroken waves on your own, most of the time? Can you ride along the face instead of straight to the beach? Can you generate your own speed, or do you wait for the wave to give it?
Your answers, not a label, tell you where you really are.
Why this matters more than it sounds
Most surfers waste years on the wrong thing, trying maneuvers they are not ready for, or drilling skills they already have. Knowing your real level is what makes practice pay off.
The map that gives you a straight answer
The International Surf Levels, the ISL, describes exactly what a surfer can and cannot do yet at each stage. No vague labels, just observable skills. It is the same idea languages use to grade you from A1 to C2, applied to surfing.