Thanks for your answer. I love language, especially the English language, but I still make many mistakes. I think some of them, we know better but have drifted into a bad habit or two. This is how I correct myself (first of all, as you probably know, when you are writing, you know what you intended saying, so when you re-read, so as to correct mistakes, you don't read it as you wrote it, but as you wanted or meant to write it.

I have a friend who has a problem with his eyes, especially reading from a screen, so I read to him what I have written, and as I do so, I can 'hear' my mistakes. Try it, if you have a friend who likes your writing and understands English.