Since i used Premiere Pro, i always feel that my warp stabilizer makes my footage shaked and skewed.
I thought i'm just beginner and can not use this tool yet. But until now i still don't understand how this tool work. Everytime i use warp stabilizer it makes my footage skewed and shaked, or whatever it called.
I'm not entirely sure what you mean by 'skewed and shaked' but I think it's similar to what I see in some of my stabilised footage. I think it may have something to do with the quality of the footage you're trying to stabilise.
The quality of the warp stabilisation is much worse when the raw footage is very shaky - when you start with less shakiness to begin with, it tends to do a better job. That being said, there are different options within the Warp Stabiliser effect, which you could tweak to see if the problems you're having are resolved?
Warp stabiliser has it's limitations but the one thing you can do to avoid the 'skewing' effect you may be seeing is to change the 'method' setting in warp stabiliser's effect controls. The default is 'subspace warp' - change this to 'position'.
See if that helps.
Lot's of other settings available that may (or may not) improve the result. Experiment for the best result but remember some footage can't be fixed or may look worse.