What are the best robes to equip? and where do I buy them?

Channel the force you must

Anyone have any good trees they've come up with. I've found a few but I don't know which to choose from.

I was perfectly fine up until I go to this point, my level is 2 higher than what it should be. When I say I get mauled I mean I get demolished in ways that should NOT happen. It's just extremely frustrating to go from obliterating all that cross my path, to getting bent over sideways by anything that I attack.

So I'm playing as a tank specced shadow, and have literally died a total of 4 times the whole game.... and then I get to Tatooine. Now I die just about anytime I fight more than one person with over 4000 hp. What am I doing wrong? I'm using Theron as my companion since Qyzen apparently just lets me get mauled by everyone. I'm so confused and thoroughly frustrated and considering starting over with a knight. Someone please HELP!!!!

Where do you learn the ability to channel the force? it isn't sage specific is it?

I have come to the conclusion that I suck at this game. Anyway I cannot defeat the mysterious Sith (the guy you fight after learning the healing technique or whatever) for the life of me. I get him about half way down before he completely annihilates me. Anyone have suggestions? I take out the acolytes first and then try and do as much damage as possible but I fail at it so bad. I'm only at level 15 which may be the problem. On a side note I'm also doing a side mission in the ruins where you have to find a jedi's lost notes or something, and I cannot find them at all, I would think its just an item you pick up after killing someone but I've killed everyone in the area and still nothing. Thanks for your help guys.