Need help starting off

Hi everyone I’m currently in my second year of my bachelors and I recently realised that I wanted to pursue a career in finance.

The thing is my study programme isn’t very finance focused- I study international business administration, so I’m not sure where to start. I’d really appreciate any advice or suggestions on how to build a foundation in finance and maybe tips to secure an internship. I feel a bit lost now so any guidance would be greatly helpful.