I am working a seed stitch pattern and somehow screwed up. I just finished a row, and there are 48 stitches when there should be 49 stitches, I count stitches after completing every row because I am new at this. So I got to the end of the row and the row should end with a knit but it's ending in a purl since I am short a stitch. I need to rip out the whole row since I am a perfectionist and I know the mistake is somewhere in this row. How do I do this? Please be very slow and specific with the instructions, I find it really hard to do things unless it is explained very basically. Thank you!!!