Well done. Very impressive for just a year and a half. I bet your gf gave you a lot of momentum to drive you keep learning Cantonese.
You showed lots of sentence structure, vocab, tense, and connectors. Well done. You managed the tones very well, 99% correct, no confusion at all. Try chopping the word one by one, and put emphasis on every single word.
One thing, one and a half year, should be jat1 nin4 bun3.
(I am from hk living in the uk. You're from uk living in hk) ha!