Raising bilingual children can be challenging, especially if you want them to speak fluently in two (or more) languages.
If you live in an English-speaking country, the English language will always be dominant for your children, regardless of what language you speak to them at home.
It is easier when they are small, but once they start to go to school and be exposed to the English language for 6 hours a day, that is when things usually change. Even if they haven’t before, your children suddenly start to speak to you in English.