Hi, my 6 month old is doing really well with her weaning, she chooses to eat more now & therefore has less formula, though she is still having enough formula for her age. But I am worried she may become dehydrated as it's very difficult to get water into her. I have 2 cups... One non spill one... How do I get her to understand that she needs to suck?? Also one baby first cup that's not non spill so I can assist her but can't leave her with it. Any tips gladly accepted as it's all new to me :-) thank you