What's the diff between spindle fibers & mitotic spindle?

[Nivea]

Are spindle fibers, mitotic spindle, AND microtubules the same thing? Also what is the difference between centrosome, centromere, centrioles and kinetochores?

I learned back in middle school that the centromere is where the spindle fibers attach during Mitosis, however now all these other terms have come up and I find them all very confusing.

They all sound interchangeable to me, would someone please explain their differences?
I searched online but most of the sites are all ambiguous in their definitions so I find all this very hard to understand.

Any help is greatly appreciated, thank you!