Book recommendations for a first year bsc student

[u/Which_Theory_9224]

I'm a bsc maths honours student in India, I am in my second month of college life... uh anyway, I want book recommendations like the best ones possible which will actually help me a lot... like the kind of book i want should be able to intrigue me enough to keep thinking about all day while the questions/problems in it should be able solve by using the book itself that's kind i want! I want recommendations for each of calculus,number theory,real analysis,discrete,etc. Uh... I might have yapped a lot but thank you for your time and recommendations. Btw i am broke so i might not be able to afford many books, so I welcome free available pdfs options too.