I think you need to look at the Kineticist class again, because you don't seem to understand how it works.
I'm intimately familiar with how it runs: I ran several throughout the playtest and a few afterwards: Burn is the suckiest bunch of suck to ever suck... There isn't much about incurable damage for the day that's hard to understand. Punching myself in the privates to power up isn't a satisfying RPG experience IMO. Actually it's worse than that because I could heal up after a punch. :P
Well...
...one could stand there for several scenarios powering up...