Prereqs for elite

I'm looking for some advice for getting into elite TFOs. Currently running a space magic build that is close to a complete stobetter build. I can provide some more details if asked, but basically my current experience with elite is that I can burst down a group of small enemies fairly well, but it takes everything I've got, and my survivability is not great. Like... I'm helping, but I'm certainly not carrying.

Not sure what the term for this is, but how active do you need to be with keying abilities and setting up procs to be successful at elite? I don't like to be intensely active as a player, but I'm willing to put in a bit more effort than I am now.