I went from knitting squares and scarves to knitting socks and mittens. Seems like a leap, but it was what I was craving to do.
The only thing that should limit you in choosing your next project, is your inclination. If you are wanting to knit a sweater bad enough, you’ll find a way to do it! Everyone told me that mittens and socks were too difficult right off, but I wanted them bad enough that I figured out how to make them.
As far as plus-size knits, I’m working on one now that is fairly simple and fun to knit - it’s a seamed sweater, so you’ll learn the basics involved in finishing too. Click on Donna in my sig line, it should take you to the pattern, which is archived on Magknits.
White Lies Designs has some great, sassy patterns for plus-size women who are tired of being dressed up like someone’s grandma from the 1960’s. She sells patterns and kits, so you can use the recommended yarn or go on your own to find something in a favorite color. If you want to try one of her patterns, I recommend the Shapely Tank. It’s the basis for a few garments, and a good starter piece. I’ll be making this pattern up for summer wear!