When I started out I looked up plants on The Spruce and got tips from there. My first battle was mouldy soil, but adding in some things to make it more airy eliminated that problem (I use 1:1:1 soil, pumice, and orchid bark these days).

I got a lot of tips from Reddit before I left with the whole API debacle. Honestly these days I just use Planta (phone app) and water/fertilize every week or two (or 3 or 4 if I’m feeling really lazy) depending on if the soil feels dry and Planta says it’s time.