Given your new knife will be pretty sharp to start with a 800-1000/4-6000 grit stone might make more sense, rather than 100/600 which are both pretty coarse.
Glen & Friends on YouTube have just done a series on posh knives, selecting, maintaining and sharpening, including which stones to get... Pretty comprehensive stuff...
^ pro tips!
yeah i have a fair few basic knives i can practice on. and i've always wanted an excuse to buy a magnifying glass!
who the fuck sells magnifying glasses nowadays?