Brand spankin new to knitting
I have been crocheting for about 3 years and decided to try knitting yesterday, I watched a few YouTube videos and learned the knit stitch and the purl stitch. I'm making a scarf to experiment with the two stitches, I started the scarf by casting on 24 and just doing one row knit and one row purl for about 10inches and for the past two inches I have been doing one knit one purl etc. for the row, and the next row do the opposite, but for some reason the sides just keep curling in. It doesn't feel like I am knitting too tightly, is thee something special I should be doing with the first stitch and last?