Do NOT give up. This is an easy thing to do once you know what a marker is for. It's simply something to put between one stitch and another to keep your place without counting over and over again on the row you are working. For example, if you want to knit 10 stitches for a border and then 40 stitches for a center of a blanket and then 10 stitches for the other border, you will not have to keep recounting the ten stitches or forty stitches every row. You will knit ten stitches, place a marker such as a looped piece of yarn of a different color, knit the forty stitches and place a marker. As you begin the next row you will knit the ten without counting, because you will come to the marker. simply move it from the left to right needle and you're on to the next 40 stitches until you get to the next marker which will let you know it's time for the last 10 stitches. You move the marker from the left needle to the right needle again and knit to the end. I hope this will help. If not, do a search for a free knitting lesson about yarn markers. Good luck.
my own years of knitting