No lah. That was pretty good!
I lived with two Malay flatmates and they'd slip in a BM word here and there and... by the end of two years, we were having 50% of our conversations in BM. Apparently,I've lost most of it though in the 1.5 years I've been away from KL. I can still read and understand 60-70% of the language. The writing is what gives me a bit of trouble. (e.g. I'd type 'awek' instead of 'awak')