Unfortunately if you bought GE smart switches or any other requiring a neutral and traveler, you can’t wire them with your existing set of wires. The problem is that you would need 4 wires between one of your light boxes and a switch box (line, neutral, traveler, load). You have only 3 to both.
You can use Cooper or Linear switches which don’t require a traveler or you can keep your existing dumb switches and use a micro controller.
As a note, if you have other switches in those switch boxes you may be able to use them to make GE switches work. It just depends on the existing wiring.