First off, Welcome to the forum Pamela.
I must confess to being right handed but...
being a left handed knitter shouldnt affect your knitting too much. You have a few different options that you can do.
1) My neighbor (who is also left handed) knits English style. This means that she holds the yarn in her right hand, in addition to throwing the yarn. For her, this is easier because she learned to crochet left handed (which means she holds the yarn in her right hand).
2) However, if you are not comfortable with doing that, another common method is to do Continental knitting. (I do this style even though I'm right handed.) With continental knitting, you hold the yarn in your left hand! For me, its harder to learn tension control with this method than it is for me to do English but you may find it easier to do because you are left handed. By doing continental, the patterns and the steps are done the same way as a right handed knitter would do.
3) The third option that comes to mind for me is doing left handed English. I don't necessarily recommend this method because as I understand, it means you have to make adjustments to patterns you follow. That said, to learn this method. Look in a mirror when you are trying to learn this method and watch what you do in the mirror. That will simulate right handed English instructions.
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