Ribs are uneven!

Hi all & I hope someone can help me! :wall: (that’s how I feel)

Am starting the Central Park Hoodie from the Fall '06 KNITSCENE. I at first started with the back and the first 2-3 sets of ribbing looked OK except for a little funny on the end (I followed the pattern). I thought: "No problem, if it’s handmade, it doesn’t have to be perfect!)
But then I got frustrated because it wasn’t looking uniform!


I thought I’d put my problem here before going back to the LYS and asking for help. I’m glad I only bought 2 skeins of the yarn called for-Cascade-it was only $6 some dollars each.