Turning work

I seem to have a problem when I am purling, I can’t figure out how I keep turning the work or something because I have a couple rows fine and then I have a row reversed then i go back again. Can anyone tell me what I am doing wrong?
Thank you:shrug:

When you work stockinette, you have to take a look at your knitting. When the knit side–the V’s-- are facing you, you knit.

When the bumps are facing you, you purl.