My ds is nearly four months and I still don't feel I know what he wants. He's grizzly most of the time and I think it's because he's tired because I just can't get him to nap unless we go out in the car. I'm trying to look for sleepy cues to see if that would help me settle him but I just can't tell. Same with feeding, he's always got his hands in his mouth so I just guess if it's been around 3 hours and he's fussy it's worth a go. I feel like I don't know my own baby and I frustrate him! Any tips or advice?