I'm a lvl 35 right now and I have to say: I haven't had any real problems so far.
The most I had to retry was 3 times and it wasn't on Darth Angral.
You just need to use all your abilities: force stasis, force kick, transcendence, saber ward, ...
I also always use Kira as my companion.
At the risk of sounding like an ******e: Maybe you should learn to play your class?