Why did you study your career?

Hi!!!
Well, I don't want to be boring, but I will tell you about of my career.
When I were a little girl want study a veterinary career. Yes, it's the tipic desicion generally of the childs, but I liked, i liked take care of the animals and that were be happy for the life.
The years passed and my likes -as all people- changed.
In the high school i liked very much the chemistry, maths and biology, and for this reason I wanted choose a career that had some of these subject-matters. I decided study Odontology in the moment of applying to university. I chose this career because always i liked it to help and take care of people in what more I can. That's why when be with my title in my hands I wish I could to go to the rural sectors where there are not so many doctor in general and help to people with lower income.
However, I decided finally study the career Food Engineering, because I realized that Odontology it's not my thing and also is quite expensive. 
With this career I want achieve the same purpose, but with foods.
My experience at the university until now has been very good, I have met many good people and as well to teachers. In relation to study, It has become difficult for me and have had moment of frustation where the only thing I want is to go me.
My dreams until moment is have a job of lab, invent new foods that be good for people, but not a office job.
Now I look forward to know how the future will be.
I hope you are well.
Goodbye reader.