Does slip stitch count as a stitch crochet?
When counting your chain stitches at the start of a pattern—which you must do very carefully before continuing—note that the loop on the crochet hook is never counted as a stitch and the starting slip knot is never counted as a stitch.
Does it matter which way you turn your work in crochet?
It may not seem like it matters, but turning in crochet ought to be done consistently each time. That is, you should be turning the same way every time you turn to the next side. The turn creates a neat edge, which is important if you are joining two pieces or seaming garments.