Hello, I am new to the knitting world. I started last week. It has been quite frustrating, however I'm super determined! I have finally mastered casting on & the basic knit stitch, but my latest catastrophe is the purl stitch. I've watching video after video, checked out diagrams (which is like reading Ikea instructions if you ask me) and I still can't figure it out! My purl stitch is very tight & ends up becoming a very sloppy, ugly knot. Please help!