What to do with my life?

Have you ever wanted to be an astronaut? Well, I wanted to be one when I was 6. Then I started to think about Medicine, that was the moment when my philanthropic spirit was born: I wanted to go to Africa and work as a volunteer. I just let it be my imagination, after that I chose medicine like the profession that I wanted to learn. This dream lost its intensity as time passed. In 2015, when I was at senior year in the school,  I faced my reality and I questioned to myself if it being a doctor it was what I really wanted. I mean, choose what you want to dedicate part of your life has some importance, and in spite of you won't dedicate all your life doing the same thing (because I wish to do many things during my life) doesn't mean that you will choose  anything. Finally, I threw away the opcion about medicine, because it called my attention but didn't fascinate me. So I opened my mind after 11 years and I considered other options, like psychology. I think this was because of my fascination about philosophy and the curiosity motivated by my interest in our minds and why we do the things that we do.
My experience at university it has been good until now, I have met many people, learnt many new things. I really enjoy it, in spite of the few hours that I sleep and the many things that I have to read.
In the future I would like to combinate my work and my knowledge with travel around the world. I don't know how, but it's something that I really want to do. I hope this don't became in a innocent and naive wish like my first wishes about what to dedicate my life in my childhood.