I'm childless by choice, so I don't have any lived advice. I just wanted to say that you sound like a great dad and your boy sounds like a healthy little duracell bunny! All the best to you and your little family!
From what I have observed around me, you're currently in the hardest stretch of parenthood in terms of the physical and mental toll from not having any time to yourself, but it comes back to you gradually as the little one grows and starts to explore the world. By the time where you get most of your freedom back, you will do anything to have those early years back. The paradox of parental love <3