Baby milestones

My baby will be 5 months in less then a week! Along with getting older he is gaining so much in his development. On 3/4 he rolled over from his back to his front. Once he got there however, he was very unhappy and asked to be rolled over again. He can go from his tummy to his back but he finds it hard and would rather if I just did it for him. Some days I will place him on his tummy and let him cry until he figures it out (Please don't call DCYF). He is super active. He will kick his legs into the air and propel himself sideways. He sometimes will do this to get something he wants or just because he feels like moving. Did I mention that my baby loves to move? He is always on the go. I look on at other babies who cuddle quietly with their mothers with envy. My baby cannot sit still. When he is in my arms he wants to stand up, look around, and grab anything that isn't nailed down (and some things that are, especially my hair). He is also really starting to like our story time. He sits quietly, looks at the book, and then tries to stuff it into his mouth. He is starting to reach for things and getting really mad if they are either out of his reach or not for him (like my coffee cup). He is also starting to look for his toys when they fall out of his range of vision and he can be hard to distract. Object permanence here we come. Something I am not looking forward to.
I took a temperament test online that tells you what kind of issues you are likely to have based on your child's temperament. T scored high in almost all categories which means he is reactive, sensitive, active, and slow to adjust. The questionnaire indicated that babies with similar temperaments to his have difficulty in the coming months with sitting still to be changed, dressed, and bathed. They also indicated that he will be a fearless practicer, which means he will stand up over and over again even if he falls every time, that he will constantly test limits, and that he will tease us. This all sounds about right.
When my mother visited us a month ago she told me that she thought T had "locked in baby" syndrome. He really wants his body to move in a specific way but doesn't have enough control to do it yet and it makes him really mad. He constantly looks like he wants to crawl but just doesn't have the muscle coordination to do it. He is starting to be able to sit up with support but would rather be on the floor rolling all over the place. His father, GT, apparently never crawled but rather rolled everywhere he wanted to go. We will see how his son compares.
I think we are starting to have a real baby and not just a bundle of reflexes. Fun baby times ahead.