It's not that serious...

There's a limit number of places that you can actually go and on Very Easy you can get into a decent number of fights without needing to worry about dying. The red dots blocking stuff off is specifically to make sure you're not wandering around places where you don't need to.

The quest was VERY important for the story, very important in making you realize just how strong your character is compared to normal people, very important in making you feel helpless. You're feeling what you're supposed to be feeling as the WoL during this quest. You're also just taking it way too seriously. You have plenty of time, the stuff is easy enough to find but if you can't find it people have posted where to find everything.

I had to do it twice because I wasn't paying attention and lost the QTE the first time I completed it and tried to rush through the second time and that was a big mistake. Just take your time, and a chill pill.