Where I believe Aristotle's views of Hapiness miss a key factor

Aristotle believed that there was one true way to achieve happiness. As we talked about in class he believed that a person who attempts to live the good life, fails, and is miserable is living a better life than a fool who seems happy but has not pursued reason. I do not agree with these beliefs. I can see where Aristotle could think that a fool could be tricked into thinking he was happier than he really is. This is my biggest problem with the subjectivist view as well. I fully buy into the idea that someone can think they are as happy as possible because they don't realize that what they are missing. Where I strongly differ from Aristotle is how we achieve maximum happiness. I do believe that it is different for each person, however there are some common things that humans want. Things like self fulfillment, and relationships with friends/family are important to almost everyone, but the balance of how important each thing is changes person to person. Every person has a different balance of pursuing long term goals vs short term pleasure and I believe humans need to fulfill both of these to achieve true happiness. The example I will present would be a nurse vs a medicine scientist.  A medical scientist could spend his entire life to develop a medicine to help arthritis, he could accomplish his lifelong goal be very happy, in the process he gave up some day to day pleasure and satisfaction. A nurse could spend everyday helping people and receive a lot of day to day happiness, but in the process she is not as actively pursuing a large lifelong goal. My argument is that these are two different routes to a happy career/life, and there is no reason to think that one way is better than the other. This is where personal taste to me plays a central role in achieving true happiness, and where Aristotle seems to leave out the personal traits that make people individuals.