I've read a bunch of stuff recently on improving my adwords QS, and everyone says you need to keep a good lifetime CTR for the account. I'm wondering if I should start over with a new account, because my CTR is 0.14% after 91,000 impressions. That seems really low, but I really have no idea what a CTR should be like, or if that is such a small number of impressions in the big scheme of things that I should just power through it. Thoughts?