I heal on ps4 and don't worry it's not as bad as you might think

Keep skill you want access to without having to move your thumb off the joy stick like swiftcast, divine seal etc and all your heals on your main hot bar (that's my personal preference, I have all my attack skills on the second hot bar).

You'll get really quick with practice racing up and down the party bar so u wouldn't worry about that. As for macros I personally don't use them. I keep the skills I would chain together aka swiftcast + raise next to each other to I can click them really fast.

For stats I went 2 mind 1 piety, you can reset your stats with an item from your grand company if you want to change them.

Don't know anything about scholar except is macro heavy and managing smn pets was a pain for me so I never used it.