Find some existing project similar to yours that has a PCB and a circuit diagram. I tend to recommend that synth DIY folks look at something like yusynth.net, and Yves Usson's designs. It doesn't have to be done in Kicad and indeed it might be better if it's not.
Redraw the circuit in Kicad, then redraw the PCB. See how close you can get to the original.
That way you're climbing the "learn how to use Kicad" learning curve, without having to climb the "learn how to lay out a PCB and circuit diagram" learning curve :-)
Redraw the circuit in Kicad, then redraw the PCB. See how close you can get to the original.
That way you're climbing the "learn how to use Kicad" learning curve, without having to climb the "learn how to lay out a PCB and circuit diagram" learning curve :-)