Relax
I have done demerit points and later a 3 month rest from driving for mid range PCA (DUI) and has no effect. Mind you, that was 20years plus ago or more.
Flying for a major international airline based in Asia.
Enjoy your future.
I have had no offences in 21 years now though.
I also have a US crew visa and have never been rejected from any country.
. Kicked out of the odd bar though!!!