This was exactly my problem, and really lead me to be more confused. I had to use a combination of an absolute beginners livestream that a guy made on youtube, and ChatGPT to help me really nail down things like dot operators.
All the magic variables they used in this are going to really keep confusing newbies.
There is a challenge in getting someone who already knows coding, to be able to teach it. They tend to not explain every single thing in the detail necessary for it to all make sense, and once the chain of context is broken, then no more can be learned.