If you cut all your strips to size and then chain your blocks, it will keep the confusion to a minimum. It's a lot of prep work in the beginning but keeps the frog stitching to a minimum. Only put the strips you're using next to the machine for each round of the chain.
First you'd have the center square and the first color bar--do all those chain piece through the machine. Next, get out only your second color bar & clip the chain. (Eleanor Burns & some others don't clip the chain but it confuses me so I always do.) Organize your pile so the blocks are all facing the same direction--I keep them to my left and the pieces I'm going to sew on, on my right and if anyone comes in messes with my very organized little piles; I throw a very big hissy fit!