Off the top of my head: in the room of the main house where the lighthouse painting is, I got a bit confused thinking that there were more rooms to the right side and down towards the bottom of the screen. And then in the mushroom area there was a point where, while going through one of the log tunnels, I guess I got stuck against a wall? If I could see my character, it would have been easy to back up and go back through but because I couldn't, I ended up trying and failing a bunch of angles and then just restarting the game lol.
I think for that second issue just making the hitboxes for those screen transitions a bit bigger would probably help a lot. Hopefully that helps a bit!