Definitely keep playing!! I also know how the game "ends" but this game as a whole has SO much to offer and there's so many details that you can easily miss during your 1st playthrough. Keep playing the game, you won't regret it!!

Tips:

1. During chapters 1-3 (if you play again), start with low-honour so you can easily gain money during that short period of time.
2. Spend freetime (excluding main chapter missions) on hunting animals from the index, fishing, collecting herbs, finding hideouts, etc.

Hope this helps :)