How do you balance belief in qadr with taking action?

Assalamu alaikum, I've been thinking about qadr and how it fits with actually living your life, you know? Like, we believe Allah already wrote everything-our rizq, who we'll marry, the tests we'll face, all of it. But then I start wondering... does that mean I should just chill and let things happen? That can't be right. I remember the hadith about tying your camel and then trusting Allah, so effort definitely counts. But how do you really feel that inside? I'm trying to see it as, Allah already knows what I'm gonna do, not that my choices don't matter. But it's hard to keep that mindset every day. How do you guys actually make sense of it in real life? Would love to hear your thoughts, especially from Quran or hadith, but also just personal stuff that helps you.