Sounds like you've got a few things you can still find! Check the gallery in Grove's room at the inn, which will give you some hints towards some of the things you missed.
Additionally, you can also check out this guide. It's not for the full game, but it help with a few things: https://qazm.itch.io/a-grove-timeline
(don't forget to give Qazm a nice comment if you use his guide!)