Upgrade to bigger bottles

I have upgraded from the pigeon 200ml bottles to the 300ml bottles, and still managing it very well on my own. I even understand mummy's instructions now. When mummy needs to shake the bottle halfway through the feed to make sure all the milk and cereal is dissolved, she says 'Yu Le, let go' and I'll let go of my grip, and when she puts the bottle back to me again, my hands will grab the bottle and aim the teat at my mouth. Ain't I smart?