<p>Please learn English. Harder is correct. “More harder” is wrong and redundant. Learn the difference between then and than. The first has to do with time. The second has to do with quantity: more than “>”, less than “<”, it is also a math symbol. And to answer your question, it all has to do with your natural abilties and interests. Some people do well in ME and would flunk Chem E. Others do well in Chem E and would never be able to pass ME. To thine own self be true.</p>