I'm just post Dungeon 6:
As I first started the Silent Realm section, I had horrible flashbacks to TP when I was given the tear container. Then horrified when I found out that it was one chance.
But as it turned out, they weren't too bad, and quite fun in retrospect. My last sequence in the fire area was super tense. I did it in one go, but that last one I had to get was very far away, and I had to evade the flying ghosts to get to it. I had to slide down and avoid one of the armored ones right next to it. I was so happy when I got it.
A hint: use your beacons! You can see where a tear is, and then pause and got to your map, and place a beacon. You can pause and unpause until you place it right. I tend to run up to a light tear, and just before nabbing it, spend the remaining time placing beacons. I didn't do this exclusively, but you can quickly add some hints if you're finding it tough.
Also, re: the "escort" mission. I could barely even tell it was an escort mission. I was running ahead so far and using my bow to take out most enemies from afar. When fighting the two lizalfos, One was even attacking my robot with no effect, except for him complaining.
if he gets hit 3 times you have to start the whole thing over :|