Lesson learned: Face up to the reality of the schematic information. The schematic clearly shows that it's an A-line sweater, and it clearly showed that it was going to be big on me. I thought I could just subtract 20 stitches from the cast on and all would be well. I was so, so wrong. it's still huge around the middle, and snug across the bust.
Second lesson learned: I thought this was a boatneck, because it was tagged as a boatneck on Ravelry pattern info page. And it's pretty believable- the photos on the project page is indeed a boatneck. However, a quick look at the schematic shows that it's a crew neck, and further pattern reading indicates the model is wearing a sweater that is several sizes bigger than what she'd probably normally wear. Again, should've taken that schematic more seriously. The designer had all the accurate information out there, and I chose to imagine an alternate knitting reality.
Third lesson learned: I suck at jogless stripes. Like, really suck. I've read several articles, watched several tutorials, and mine look terrible. I was doing the stationary slipped stitch method. Anyone have a moron-proof jogless stripe technique?
What absolutely kills me is that I was so excited about this sweater. I love the colours, I love the yarn, and I want to love this sweater so badly. I had visions of it being the classic striped boatneck sweater, the perfect thing for me to wear regardless of trends for years to come. So I'm crushed. I haven't frogged it yet, but I don't know what else to do. Ripping the whole thing out and starting over is so depressing. The only other possibility I can think of is to frog to below the bust and add more room in there, and make it a slouchy, sort of oversized sweater. And, of course, make it a boatneck.