I recently bought a Rode NTG2 without much research, what else do I need to make it work well? Since it has an option for AA battery, I don't need phantom power right?
Do absolutely need an audio interface? or can I just use an XLR to 3.5mm cable and connect it to my computer? Are there any other things I need to look at to get decent audio?
I'm really confused and haven't really found a straight forward answer online, really sorry for being dumb and thanks a lot for your help.
Never forget that no matter how much you spend, distance is everything.  If you want the best results you'll want to boom your shotgun right above or below the person.  Camera mounting will gives you the worst results because you will always be further away than you can get it with a boom.  I would rather use a $50 mic boomed (or lapel) than a $2,000 mic camera mounted any day.