Keep in mind that this will continue to be the case for a while. Sometimes you have to worry less about understanding what's happening to start off with, don't let not knowing how to do something stop you from doing it. Sometimes it all becomes clear once you see how things are used.
One thing I would suggest, it really provided the "aha" moment for me, is finding something that will dump out or print our your datastructures. If you don't understand what a hash is, and there's a tool in language (x) that will spew out what's in there, you will probably very quickly "get" what it is.
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Keep in mind that this will continue to be the case for a while. Sometimes you have to worry less about understanding what's happening to start off with, don't let not knowing how to do something stop you from doing it. Sometimes it all becomes clear once you see how things are used.
One thing I would suggest, it really provided the "aha" moment for me, is finding something that will dump out or print our your datastructures. If you don't understand what a hash is, and there's a tool in language (x) that will spew out what's in there, you will probably very quickly "get" what it is.