Blanket edge help

I’m knitting my first blanket and am in need of some ideas to make my edges look better. Instead of carrying contrasting color up for my strips I weaved in the ends and it’s led to a wonky edge that looks messy. There are also some spots that look like they could use some reinforcement.

I am hoping there might be a solution to help it look better without redoing the entire blanket. Thanks for any help!!

Welcome to KnittingHelp!
The blanket is beautiful knitting in a lovely seed stitch pattern. You might think about a knit or crochet border. Even a simple single crochet stitch would even it off the edge

or you could pick up sts to knit around the blanket then cast off on the next row.

Pick up 3sts at the corners in either case so that the border lies flat.