Just thought of something. If you're going to be growing in soil, it would be good to get started feeding your biologicals in live soil. Mixing your soils and adding predatory nematodes, sugars, and fish emulsion. Even earthworms if in a large enough pot and you're running all organics. If going organic you need to look at acidity, pearlite, peet, sand, expanded clay, biologicals, etc...
Look into threads on preventative pest control and start adding things to an Amazon wish list so they're quick to find when you need to order them, and you're not suprized by prices at inopportune times.
Decide what line of nutrients is best suited for a beginner. Maybe with ph buffers. Get your tea brewing kit if you don't have one already. It will save you a fortune in nutrients. And bubbling premade nutes airates them for an even greater impact.
There's lots of stuff to do if you have a general plan already. Heres a set of soils and expanded clay I used for an organic start. Not sure if being indoor would change the mix. Don't know indoor.