Finally submitting again

I haven't sent out a query in a few months and I finally got on the ball. I started with re-editing my historical novel. That seemed to take forever and I was quite surprised at all the mistakes I found. My computer also got a virus that erased all my stories on the computer and when I saved them on a thumb drive. I had to do some serious damage control to rescue it. The formatting was all jacked up and that took time to get it all sorted out. Next, I changed my query letter and synopsis. I made a fresh list of agents and off I went. So far 3 rejections but whose counting?