Student or Learner
Many people confuse me with my brother. So I use the sentence below to express that.
"Many people mistake me for my brother". Is it right grammartically? Are there any similar sentences to express the same meaning?
It's just fine. So is your "confuse me with."
I'm not a teacher, but I write for a living. Please don't ask me about 2nd conditionals, but I'm a safe bet for what reads well in (American) English.