Non-pro, non-wedding photographer here. Last year I took a few pictures at my sister’s wedding. My cousin, having his own wedding coming up, saw some of my shots on Facebook and asked if I would photograph their wedding. I agreed.
I had 8 full months to prep. My experience and comfort zone consists mainly of landscapes, astrophotography, and some OK candid stuff, though I like to push into new styles and subjects to force myself to learn more.