So as far as I've made it. It looks like there is no conjugating in verbs, between Saya and Kamu (I and you). Am I wrong?

You're right.
No tenses and no conjugation for verbs.

True, there are no verb conjugations in Indonesian :)

Some of the pronoun "you": kamu (informal, intimate) Anda (formal, polite)

"kamu" is intimate. Use it only when you're talking to your friends or to a child, even your kids.

When talking to a stranger, to someone who is older, or to someone that you've just met, use "Anda" instead.

I drink (...) = Saya minum (...) You drink (...) = Kamu minum (...)

I don't drink (...) = Saya tidak minum (...) You don't drink (...) = Kamu tidak minum (...)

I don't drink milk. Saya tidak minum susu.