Help needed on knitting pattern

Pattern reads: 62 sts. proceed in stockinette stitch, inc 1 st each end of needle on 3rd and each following next 4 rows. 72 sts. inc 1 st each end of needle on following alt rows to 82 sts.

I’m not getting the correct number of stitches, please help. Thanks

Welcome to the forum!
Remember to increase at [I]each[/I] end, that is, at the beginning of the row and at the end of the row. So you would increase on rows 3, 4, 5, 6, and 7 which makes 10sts (72sts total) and then every other row to 82sts (rows 9, 11, 13, 15, and 17).