What science to study?

I was ill and i have a degree in economics. I like sciences. What science should I study. I am 30 years old. My dream was if I hadnt been ill to make us immortal, but it is too late for that. Should I go for astronomy? Astrophysics? Physics? Chemistry?

az_lender2021-02-06T10:20:17Z

Opportunities in astronomy and astrophysics are quite limited.  Physics and chemistry would apply to a greater number of jobs.

You don't say what country you come from.  In the USA, every single county employs civil engineers, so civil engineering is a major that would give you the chance to live anywhere you want.

!2021-02-06T09:08:21Z

I dont think you possess the mental faculties necessary to study any of the sciences. 

AdamTheAtheist2021-02-06T09:05:10Z

Astronomy.       

ReductioAdAstronomicus2021-02-06T09:03:09Z

Go for biology or medicine. If you dream of becoming immortal, then study a science that you may be able to contribute to in order to reach your goal.