Welcome to The Farm Hehehe! There's more than one way to skin a cat... err umm I mean grow a plant lol
Lots of peeps grow with synthetic nutrients (Salt based) bc they feel its easier, and there's a myth that organics don't yield as well, which is true to an extent, but not as much as some make it seem. I personally have found organics to be much better quality without much (if any) of a sacrifice in yield, but thats also dependent on the strain.
Knowing what I know now as a grower, If I could go back in time to talk to myself when I got my first plant, I would say:
~ Start with an organic amended soil like
Foxfarm ocean forest, or
happy frog. It has enough food in there to feed the plant for about 30 days.
~At some point, the soil will run out of food, and the plant will get less happy. You have a couple options here, You can either transplant into a bigger container with more fresh soil, or you can start feeding with Organic Nutes. People seem to love the
foxfarm trio (Grow big, Big bloom and tiger bloom)
Sunlight is the best light for plants. but if your indoors, that creates an issue, since most buildings have roofs. In that case, You have to use artificial lighting, either Compact Fluorescents (AKA CFL AKA curly q bulbs), LED (can be expensive for the initial buy), Tube fluorescents (T5HO are recommended, followed by T8/T12), or if you want to get 'serious' you can get some sort of HID (High Intensity Discharge) light, Like a High Pressure sodium (HPS), Metal Halide (MH), Ceramic Metal Halide (CMH or Ceramics).
For a long time, HID was the go-to for performance and quality, Metal Halide had the right spectrum for Veg and HPS had the right spectrum for Bloom. But now that LED tech has risen, lots of peeps use those with great results.