It's almost 11:30 pm, there's an interview tomorrow and I am not able to concentrate.

Watch your english. Desi folk can flourish good english. In the post "and I can't concentrate" or "and I am not able to concentrate" - you never know if the guy on other side us particular about english & in competitive field, anything can matter🖐️😜😎
BTW, feeling jittery or restless before an interview is quite common
Have a restful sleep, that will help you focus.Cheerio 💜💖

Ask them about the company's Mission statement they will be impressed by your interest.

Good luck mate, hope it goes well 👍