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So, you are on your second or third row of crocheting a blanket, and you realize that you are not following the pattern stitch as written (let's say you're putting 5 dcs in your shell rather than 6), what to do?! Basically, there are two courses of action you can take: go with it or rip it, rip it! You've created a new pattern of your own. If you like the look, then just adjust the original pattern accordingly. If you don't, however, then just face the facts, rip it out, and start over. Be glad that you didn't get further into the blanket before discovering your mistake!