My little boy is growing up so fast

He tried to crawl yesterday. Couldnt quite get it so he is still rolling everywhere lol. I will turn my head for one second and hes across the room. I just cant believe how fast these 7 months have gone hes almost a year old. We got him a walker he hasnt quite figured it out yet but hes working on it. Hes started clapping and i swear he says yeah lol. I have heard mama and dada a couple times but he doesnt say it like he knows what they mean jsut sounds coming out of his mouth. He sits up if i sit him there he will sit for a long time unless he wants to go somewhere then he rolls. Hes just growing up so fast.