You should only follow your talents and inclinations you were born with, never venturing into new and uncharted territory, as you know beforehand that you will fail.
Everyone can learn and master anything they want, it only takes time and effort. Subjects we are not interested in are harder to master, as interest plays an important part in learning. Besides, we tend to procrastinate if we believe that a subject is too difficult for us, but there are methods to cope with a tendency to procrastinate. In fact, history shows us that important breakthroughs are often made by people bringing ideas and problem-solving methods from one field to another.