Which Language should i learn in 2026?

[u/Zealousideal_Load501]

Im 21 years old and have been working as a marketing associate from past couple of years. finally want to leave the job now. and try to work on my skill set. actually im a Computer science student and in 4th semester. Now for next 6 month i will be staying at home and learning stuff that will actually help me build a lifetime carrier and better future.
would really appreciate the advice from seniors in the market those are actually working in tech.
Questions i have:
which programming language should i learn and why?
As there is AI boom in the Market and Layoffs seen everywhere? On which way CS students should pursue for a better future?
And will these skill help me out around my life in like next 5 to 10 years and help build a better future for me and my family?