I try to do that and I got the look of knitting instead of stockinette,mmm...should I ignore it and just keep knitting???
As others have said, you get stockinette in the round by knitting every round.
If you're doing that and getting what looks like garter stitch, it's probably reverse stockinette that you might be getting because you're knitting inside-out.
Envision your needles as a cup. You should be knitting where you would drink out of the cup. If you're holding your needles sort of away from you and knitting on the opposite side, you'll be knitting the inside rather than the outside of your project.
Maybe that will help you?