My unclear future

I keep finding myself in the difficult position of having to find what I want to study at university. 

It doesn't seem that complicated, and many kids around the world wish everyday for the same chance I have, to be able to be in such a situation. However, I keep thinking that this choice I have to make will end up in throwing away some opportunities. It might be a childish thought, but the idea of doors closing at my face is terrible. 

I do not want to be restrained. To be kept in a box. I want to be able to do anything at anytime if I ever decide to do so. Ultimately, that's how it is, choosing what you want to study means setting the footpath to take for the rest of your life, it means ticking a box and accepting to stay in it somehow. 

I know I am wrong, that finding what I want to study actually means setting a footpath I can decide to follow, not the one I will need to follow. It means that I will be able to secure my future in some way.

The problem is that I am facing all kinds of issues. My dad tells me I do not have enough ambition compared to my expectations. He could not be more wrong. I want to be at the top, I want to be able to sustain the way of life I am having right now, and to do so I will do my best and more. I am determined and I do not back down easily, I might not be as good as the people around me at doing what I like, but I believe I have the most potential. I push myself as far as needed, I understand the concept of sacrifice. 

Still though, I want too much, I want it all and I cannot have it all. I might be growing everyday and understanding some deeper sides of life, but I am not ready to accept the fact that I will never be satisfied. 

That's my problem, I'm interested in everything but ready to make a real commitment to not enough things, I want to live a really cool life in amazing cities like Sydney or Nice but I also want to travel the world, I feel like I need a challenging job to keep me on edge and interested and maybe make me feel threatened sometimes so that it can help me blossom and strive, but also one which allows me to enjoy free time and my peers. I want a very public job where I get to meet tons of people, get to understand and explore their worlds, see life the way they do but sometimes I find myself to be an introvert, as I like being alone once in a while to reflect on my views. 

That's just it. I want it all and its opposite. It is hard for me to settle down at a time where my head is filled with dreams and possibilities. How can I ever turn away a possible career when I have never tried it ?! 

I like science just as much as economy, but I had to choose between both and I took the second option, which means I will never be a neurosurgeon or a doctor. How ridiculous is that!? I had to make that choice age 15. I follow the french system and I find it horrendously ridiculous. 

I do not want too much, all I am actually begging for without realising it is more time. Time for me to grow into myself, to find out more of my interests and the lifestyle I'd enjoy the most and what type of person I am. 

Unfortunately, it is a luxury I and many others do not have right now. Time. The only thing we can never buy. 

So please, tell me, what is an artistic, public, mentally challenging, creative, people-oriented, well-paying career path I can consider which would ideally also be accompanied by responsibilities and opportunities to go always higher?

And here is the absolute truth: If I could become anything in the world right now (although there is a very high chance this will change in the few years to come) I would be an actress. 

Note to my future self: After studying something clever and finding a lovely job, please do not forget or give-up acting ! What you love does not have to be your job but you should not forget about it either.