Daniel:I'm almost five months. But I can't sit up steadily by myself. I don't know why I can't do that yet. My mom had did it at my age. Even so, I'm not depressed at all. I'm very optimistic with myself because my mother has been encouraging me to learn do everything step by step. She told me not to worry about it if only I don't lose my heart and try my best to learn lots of things I don't know.