Some time back I tried t to crochet a dress with just a picture - no pattern. I got the chest part and the sleeves and was starting to crochet the dress part. I decided I didn't want to crochet the dress anymore and now the color I need for the scarf or blanket I'm crocheting now is in the center of the dress so I'm frogging it and I can use the other colors too for flowers.

I can frog it for a row or two once I find the beginning but then when I get to another color I have a harder time frogging. Example: I'm frogging the blue yarn and when I pull the blue yarn and get the blue yarn up to the white yarn I can't just pull the blue because it won't just pull; if I can't figure out how the yarn goes to frog it then I cut it.