Mana Efficient Resto Shaman?

I know nothing about shaman in any capacity, nor do i know how to make macros in GSE, so, with that said, is there anyone out there that can possibly make a resto shaman that doesn’t eat mana like a fat kid eats cake? I have tried literally all the resto macros here, for one that doesn’t eat mana, and they are all good at healing, but bad at mana conservation. i’m sure it’s something i’m doing wrong, as i’m not versed in using GSE macros very well, nor using class toolkits properly. these new dungeons and raids (well, the change in difficulty that is) are killing me. One single boss fight in Necrotic Wake on a Mythic wipes my mana bar out at 222 ilvl.

Thanks in advance. :slight_smile: