Like anything, a combination of talent and effort is usually required to become proficient and/or master a complex skill. The less talent you have, the more work you need to get to the same level as someone with more innate talent.
Your instructor is probably adopting the mindset that the commercial airlines get to pick the best of the best, so they will choose new recruits that show a very high aptitude for flight in general and commercial flight training specifically. The same applies to military flight schools like the one your instructor would have gone through; there's usually a hundred applications for every opening, so the recruiters are told to weed out anyone who's not absolutely perfect for the job.
However, let's draw a parallel. If you were to judge a student driver's lifetime aptitude for driving a motor vehicle from the first 10 hours of time you spent in the passenger's seat with them, and that judgment carried any weight for a career doing it, there would be no professional drivers in the United States. Forget it. Insurance companies in the U.S. don't even back off the "teen driver" insurance rate until you're 25; if you got your license at 16 that's 9 years of being considered "high risk" just because of your experience level.
Back to aircraft, you can't even get your commercial pilot's license in the U.S. until you've logged at least 250 hours yoke time (as a PPL holder with at least 50 hours logged already and flying two hours a week for fun, it will take you up to four years to log that much time), and you can't even show your face on a commercial airliner as First Officer until you've logged 1,500 total flight hours, then you have to log another thousand hours minimum as First Officer to fly an airliner as Captain. And those are the absolute minimums, assuming you don't log any flight time that doesn't also directly contribute to another requirement of your commercial license such as cross-country, instrument approaches etc; a PPL can log a thousand hours and not meet the other requirements for a CPL, and most pilots double the minimum logged hours while meeting these other requirements. So, talent or not, if you haven't killed yourself or gotten your license pulled after almost three thousand hours at the controls of an airplane, you know what you're doing and you've likely seen it all.
Back to you and your instructor, I concur that it's probably not a good fit; your instructor is inspecting too much too soon (ten hours is really not even enough to accrue the necessary training for a solo endorsement), and I'd look around for another instructor with a little more patience for you to have some "aha" moments about flying.