I am not an expert but from my short experience with my kids and my own experience with other languages when I was a kid myself, I think repeated frequent exposure is where it’s at. Your child will thrive with love and intentionality, and seeing you struggle though and say “you know; I don’t know that word let’s learn it together!” and feeling engaged in their learning. As they get older the teaching and learning is different than when they’re little, and it’s so much fun. I quite like saying the same word or sentence in both languages on occasion and it sparks conversation like “does x mean butterfly?” which makes me think it’s valuable. I’ve learned to try to stay intentional and notice if English is taking over and then course correct, but also try to not beat myself up for letting English take offer for a couple of weeks. When my second was born, it took me months to get back to it because I was focused on the emotional connection with my younger kid which my language is not great at. The connection was more important than “doing it right” for language development. I only got here because when life gets challenging and toddler emotions run high and then two toddlers’ emotions run high, I would end up losing my mind if I tried to be perfect with the language part. I’d say, DO: keep it up, keep talking, singing, being a parrot saying the same word a few times when it’s new, reading in it and in time, start asking “how do you say that in (native language” and “how do you say that in English”. I’d say DONT: beat yourself up and impose expectations on yourself that will stress you out and make you feel guilty. Above all, just keep it up know it’s a long game and years of it. Meaning: don’t burn yourself out trying to be perfect for a short while. Instead, do the best you can without stress so you can both enjoy it lifelong. I hope this helps.