Default Advice on rooting and flashing my Note 3

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I haven't rooted and flashed ROMs in a couple years. I know a lot has changed. Could someone please get me started?. I hope that I attached the pic correctly.
My Verizon Note 3 is only a month old and I haven't done anything to it yet due to lack of knolage. I also don't want to trip the Knox counter. Any and all help is greatly appreciated.

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