I wouldn't worry about your English. It seems fine to me.
The way I look at things is that a lot of non native English speakers have taken the time and trouble to learn English, mandatory or not.
Such folk have a far better command of English than I might of their native language so I don't worry about such things.
Sometimes such things appear 'cute' to me and not in a patronising way - e.g. I know of more than one person who often write "prizes" instead of "prices" for example.
The way I look at things is that a lot of non native English speakers have taken the time and trouble to learn English, mandatory or not.
Such folk have a far better command of English than I might of their native language so I don't worry about such things.
Sometimes such things appear 'cute' to me and not in a patronising way - e.g. I know of more than one person who often write "prizes" instead of "prices" for example.