I'm pretty new to all this but I've found I need a few different nic strengths on hand for different times. 24mg is good when I'm out & about, but sitting here at my desk or hanging around my cave I vape like a madman so that's much too high; I mixed a nice (roughly) 12mg and can sit here all day vaping my brains out with no trouble. Also, originally I figured I'd want a tobacco flavor... smoked full-flavor reds at 1 1/2 PAD for years... but quickly discovered I prefer other flavors, mostly with chocolate. Also much to my surprise, in the tobacco flavors I like a little menthol now.
Anyway sounds like you made a good choice for a starter setup, and keep in mind, education is not cheap. In this case though, it can be a lot less expensive than smoking, so even the inevitable mistakes are money well spent. Welcome, and happy vaping!