There is a learning curve, and different people have different approaches. Yours is to dive in, which means you will learn a lot quickly. I always go too slow and do a lot of smaller experiments along the way. I make fewer major mistakes, but am slow to adopt new software.

You will make it through this frustration and be actually helping others figure things out before you know it.

Don’t worry about the copying and pasting. Strangers on the internet care more about your success and well being than corporations anyway. I’ve been involved with the open source community for decades in one way or another and I have never - not once - encountered malicious code in a support forum.