Best way to get started

Total beginner… be easy on me. What is the best way to get up to speed on all of this. I feel a little overwhelmed. Thought this was going to be plug and play. It’s obviously way more and I willing to dive deep. Just don’t know where to get started.

I’m running Elk on a Raspberry Pi4 8GB w/HiFiBerry DAC+ ADC PRO.

Any help would be turly appreciated.