Let's start with my big treasure. He was enlightened at the age of three, learned to spell naturally at the age of six, and transitioned to independent reading in about half a year. I was struggling at the time. The child's English ability is getting stronger and stronger, but I can't keep up with him. His speech speed is obviously much faster than mine. Sometimes he says I haven't reacted yet, and then he asks me. As a result, the child stopped talking to me when he saw that I asked too many questions, and he didn't speak English very much, so our daily English conversation became less and less. Fortunately, we have been studying, and now we have enrolled him in an online English class (G 1, California). Occasionally, when someone is interested, he will say a few words of English to his sister and me. My sister started English earlier, so I strengthened my oral English. Now you can answer with me.
Suggestion: If your spoken English is ok, you should always speak English with your children and keep reading. When appropriate, introduce natural spelling to children and let them read by themselves.
If economic conditions permit, sign up for a foreign teacher class or find more bilingual babies to play with.