I messed up

i’ve been knitting a shawl that’s 60 stitch in each row and just realized i added a stitch somewhere in the last 10 rows or so. what’s going to be the best way to fix this?

Just decrease a stitch on your next row. There are videos on this site that show you how. Here’s a link: http://www.knittinghelp.com/videos/decreases

Good luck!