Myself and our scholar with general healing tips can be found here:
https://www.youtube.com/watch?v=zosvXwJ0tKQ

but in general during non add phase preys your whm should be handling the tank healing so you can focus on landing the adlo on the prey target. the trick is to learn the timing so you can keep yourself from getting caught casting, since even with a cancel you may not be able to land the adlo with consistency.