How do I mop my kitchen floors?

I need a step by step guide please on how to mop, down to which mop and bucket I should buy. I have learned many skills since living alone but keeping my floors maintained has not been one of them. I've lived in my apartment for a couple of years now and have not mopped once. I consider myself to be a relatively clean person so there is a lot of shame behind asking for help, but here I am, with an ant problem no less. Can someone break it down for me, please?