Agreed. Most of this is going to be dependent on the situation, so you will have to practice many different things. One thing is definitely doing more dps when possible, and this will require practice with gambling people's hp. People are going to die when you practice new things as a healer unfortunately, and sometimes that can make people upset. However, it's a lot of adapting to each and seeing what can be done in what windows. Sacrifices must be made at times.