Why are twisted stitches bad?
If you consistently twist both rows, your stitches become too tight. So much so, you may find they are difficult to work. Your finished items may come out too small. When you consistently wrap the yarn counterclockwise, and your stitches are always mounted with the left leg in front, your stitches will come out even.
Why is my knitting slanted?
When the square or rectangle you’ve knitted develops a pronounced slant, and turns into a trapezoid, the problem you are having is called “biasing.” It’s a frequent complaint with chenille yarns, with cottons (especially when the yarn is a “single” rather than a plied yarn) and sometimes even with wool.