Hi, there, Marianna. I tried to learn knitting several times and couldn't until I tried Continental style. If one style is not working for you try another. I know of English, Continental, Portuguese, and Eastern European styles, all accomplish the same end in somewhat different ways. Your LYS owner is obviously brilliant to point you here! Hmmmmmm.....I wonder who they are.
You can't knit the left sock first. Ever.