Smart lights in an old house

I was wondering if someone could give me some ideas. I’m new to this whole “smart light/house” I bought 2 Hamilton Beach flush mount lights for my house and the wink hub to control it all. I know I need a smart switch now so I can control via my phone and or light switch. So I bought the GE Z-Wave Wireless Lighting Control On/Off Switch, In-Wall, 12722. Unknown at the time, I need a neutral wire for those to work. I have an older home with no easy access to a neutral wire. What are my options at this point, besides returning everything. Sadly this project has been going on for MONTHSSS and most lights and hub can’t be returned at this point. Responses in laymen’s terms would be greatly appreciated.

This might help: