I'm... not sure about what you mean with clicking on quest icons, my guide is literally just a long text document with some pics and bookmarks to help you move around, Caro wants to make a proper quest log inside the game, but that has relatively low priority and is hard to code.
The gallery is just there in the main menu or if you pause while playing (press the escape key), cheats are on the Discord server for $5 patrons.
Anyway, quests can be done with a somewhat flexible order, i specify the requirements to unlock each one for every quest, use the bookmarks (or ctrl+F) to navigate through the guide faster, or ask here, or on the Discord server, where people tend to be online and up to help (link in the game page on here or in the actual game's "about" screen).