I can answer these.

1) Not really. Because WHM plays almost entirely reactively, there's little use for macros beyond Swiftraise or informing the party when you use Virus/E4E. I currently have those and one that also informs party when I sleep or use Benediction, and that's it.
2) Presence of Mind is so situational that it is rarely used. When I was a bit lower in ilvl I'd pop it post heart for Titan HM to help me keep up with the damage, but at i86 that won't be needed. I've also found it works really well with Holy for something like FATE grinding (atma...) for just pushing out big hits without regards to MP (since its a FATE)
3) Just note that your playstyle is quite different. SCH is designed to be very proactive. If you cast an Adlo that hits before any damage is done, Galvanize is still significant in it's own right. If you do that with a Cure 2 you've done nothing. WHM is all about reaction. It helps to know the fight on a deeper level, it helps to know when you can stop and do nothing for a bit (since our effective MP is lower). It's a very rewarding kind of play when you can do it well, but it'll take some work to change to that mindset from the SCH one.