So when do I RLU???? at levels 4,8,12,and 16? because i'm at level 3 ready to level up to level 4, and i don't know what to to to get me feats to stick.
your RLU at that levels because they are attribute levels, if you dont RLU you will lose your attribute points, also ir you FLU at that levels and RLU at a non attribute level, nothing will stick. Once you get how to FLU, you can FLU at whatever non attribute level and RLU at the level where the feat/Force power you want is. Its only a matter of practice.
However, in my game I had to go an extra level with Mission at that part. The walkthrough didn't match my experience because, if I remember right, I either would have landed on an attribute level at 15 or I wasn't getting a feat at that level. If that happens just go until you get a non-attribute level with a feat, and RLU.