LogFAQs > #967382791

If a boss or area is kicking your ass and you don't feel like you're making progress against it, go out exploring and do other stuff. You can always come back when you get stronger (whether it's from leveling up, upgrading s weapon that you like, or simply becoming better at the game).

The 1st cutscene boss in particular is meant to be a lesson on that, but the game doesn't really tell you that and it has led to some people quitting because they think the rest of the game is going to be too hard (in part because the game subtlety leads you to that fight)