My son is 3 years old and will be a couple months shy of 4 when his little brother comes. I am scared of juggling two. My son is an amazing yet defiant, run away at the grocery store and scream through checkout kind of toddler. He is rough with little ones and am just wondering how much he will mature in those areas in the next 6 months. Some days I feel confident but after 3 nights camping while pregnant and chasing my toddler....I am feeling terrified.