Need help to learn single crochet

[Eddiethecrocheter]

Hi, 

I have been trying to learn how to single crochet for almost 2 weeks now, but no matter what I do, the square I'm trying to make has millions of holes, not a nice neat piece like I see in the hundreds of tutorials I have watched. Ugh. 

I have cheap average yarn, and have been using the 5mm, 6mm and 7mm hooks but each produced these dreaded holes. I squeeze the hook under the top 2 stitches, yarn over, pull through the first 2 loops on hook, yarn over again and pull through the last loop on hook. Am I supposed to only yarn over once, or is this a different technique, slip stitching possibly? 

 

Thanks for any assistance, I really want to get this right before moving on, please refer to the attached pic to see the holes. 

[Avon Lady]

I answered in your other post--but here goes again.  To sc: Insert hook in stitch, yo, draw loop through, yo, draw through both loops on hook.  Please let us know if this helps or not.