https://aurelia-game.fandom.com/wiki/Story_Progression_Help
walktrough is free, or like gudjob said, you can also just read the dialogue, which if you do skip it like i do since i finished it multiple times already... you can also talk to the Gem dragon (lizard at the pond) for hints, sometimes she just straight up tells you what to do as well
P.S. if your quest isnt mentioned in the link...its just one page of the most common quest problems on the wiki, you can look up the characters in the wiki and see a much more detailed walkthrough of their quests