The Risks of Grammar in a Native Language

i've lived abroad for the past seven years or so, and in my home dialect, we have double motals. These things are totally grammatical in my dialect, but i don't use them often now because i very rarely speak to somebody from the south. And if they are from the souththey're usually roon, like an urban area, and they speak something closer to generala. I think you can adopt a as and alto, i think you could correct your your gramma, but i think it's just like, the sheer quantity of mistakes will be beyond things you can notice. With plurcentric languages like english, some f things not totally ungrammatical to me