Can I wrap a corner with knitted length?

I’m knitting a baby blanket, building the blanket with patterns and color in sections. I’d like to shorten the length as I cast on and started too much. Is there a way either to wrap the long part around a corner or undo part of that leading edge. Any help is appreciated


The blanket is so lovely it would be a shame to work a half measure to fix the initial mistake. You could cut it where you changed the stitch count, place live loops on the needle and knit down to a border: