Kein vs Nichts & Ich vs Mir Ruleset

[steep flame]

Need help with understanding how this works

[abstract basin]

you mean "kein vs. nicht"

nicht = not

kein = not one, think of it like "k + ein", where the "k" = nicht

(nichts = nothing, different word than nicht without the S)

Pro-tip: try looking up grammar topics on Youtube! Chances are, someone has talked about it

https://www.youtube.com/watch?v=NcswV-xuyMc

"ich" and "mir" are both like I/me, except "ich" is in nominative case, and "mir" is in dative case.

You need to learn cases to understand when to use each. This is a big topic. Here's a playlist on cases in German:

https://www.youtube.com/playlist?list=PLKCEuz6wxDQk_EIj2hea3GbXiBdXfd3MW