I'm so sorry you had to go through this Imola. As a POC and child of immigrants living in a predominantly white country I have also faced this sometimes blatant, sometimes subtle/systematic racism, including the exact scenario you mentioned with "Wow, your English is so good" (which btw good for you for being sassy back to them. I never have the confidence to do that but it's what they deserve for sure). It's definitely disheartening when you call a place your home, especially when its the only one you have ever known, but you are still made to feel like an 'other' there.