Good day. Baby is almost 3 months old. I am forced to switch to formul…

Good day. Baby is almost 3 months old. I am forced to switch to formula feeding, then I plan to restore lactation. In the meantime, could you please tell me who on formula feeding, according to what scheme do you give babies breast milk and formula? I gave breast milk, then formula, but the baby then asks for breast again, I'm afraid of overfeeding (. Girls, can you tell me who feeds 2-3 times, how do you do it and at what time of day? Thank you.