I’m not sure how you made your PCB (or if you had made one in the first place), but I made my first PCB (Xpandshield MK 1) without making schematics. I know where everything goes and where they go on the board, so I simply put the footprints and routed everything manually. Then I checked the PCB to make sure there is no violation.
On the more complicated Xpandshileld MK 2 I decide to again, not draw a schematic but the number of wires are troubling me quite a lot, so I created nets so I can assign each connection to a net. This way I can have the DRC checker (and the markings) working for me to make sure I don’t connect, say, the tri-state buffer in reverse polarity because I forgot which trace is positive.
Part of the reason I did not make a full schematic is because I use modules, like display modules and Arduino Micros that I do not have control over what gets put up there and, as a result, the symbols are lacking in the schematic designer (among others, but I can bear with it)
I’m not sure whether you are making a unit with no pre-assembled modules or whether you are making those with them. But since you had implemented the oscillator, my assumption is that you are not relying on external modules.
Anyhow. If you have a pin you are not using, you can put a “no connection” (usually a cross) flag on that pin. And have more nets. That is, if your PCB editor does not have a net editor (yet). They will make connections easier.