There really isn't a pattern here to help with, if I'm following the posts correctly. sylvia is just looking for a way to make the blanket without having to turn it around at the end of a row
i am making a huge afghan for a friend
just lazy i wondering if you can crochet back
the afghan is so heavy and bulky that it is hard to turn
~emphasis is mine
If the reverse single crochet can't easily be worked in, then the simple answer for sylvia is, "you're just gonna have to keep at it."