Sounds good thanks for your help

Alright you guys helped out, but let me make sure I got what you guys were saying; A healing rotation is more situational than a set rotation, and is important to keep up the energy. And is Injection worth using now that I would be using Surgical Probe and Kolto Probes? Also, Diagnostic Scan and keeping energy up is required for more endgame flashpoints such as the hard modes. Like will it be necessary to spec in it during the early game while leveling? Thanks for your help

First off I am only level 22 so I do not have a full understanding how the class works yet. This is my rotation so far: Kolto Injection>Stim Boost>Kolto Probe>Kolto Probe>Kolto Injection>Kolto Infusion> Repeat and use Adrenaline Probe when necessary Is there a way I can improve this rotation? I use it so I dont burn 50 energy right off bat to gain 2 tactical advantage. Also is speccing in and using diagnostic scan vital as a Healative? By speccing in it and using it, does it really crit enough to help? Just wondering because the healing the skill gives isnt that much to help keep someone up. So I just see it as something to keep my energy up. If it is definitely worth speccing in where would it fit best in a rotation? Final question; is it worth it being a healative in pvp or should i go with a lethality build? Just wondering because pvping right now gives me no dmg output and it barely lets me keep allies up.