Of course you may be right, and one of the sciences will be the best career for you. I just feel, looking at your chart (again) that there is so much to you than just your career. For example, there is your loving nature (Libra) and your Idealism (that stellium in Sagitarrius).
And, the solution to your 'task' for this lifetime lies in Uranus -- which is the ruler of your Moon's sign (Aquarius). What does that mean?
Feeling uncertain, I took a look at Key 11 (the illustration representing Libra), and the first thing that caught my eye was that small emblem of a square, with a dot (or Bindu) at its center. And then I felt a flash of understanding.
The square is what we bring into manifestation, and the dot represents the discovery of our own Self, who we are. And that is the fall out from this process.
And, suddenly, I saw there was no need (in my opinion) for you to worry about your career. In your studies of math and science you WILL discover who you are and what brings you complete happiness in this lifetime.
How many people have I met who got their degrees in a different discipline than that of their work? For example, when working as a technical writer for a Software Company (this was years ago), one of the software engineers got his degree in Music!
And he was really good in both disciplines.
marbeh