It will get easier as you go along! After several rows, you either be in the "dip" or the "ridge" of the ribbing, which will help cue your eye to what you should be doing.
Also, (as a beginner myself) my first scarf is long and ribbed. Somewhere around row 20 or 30, one of those ribs got an extra knit stitch, and a pearl stitch got dropped. I knit the rest of the scarf like that, and its a long one.
No one but me ever notices.