I've been submitting e-mail and snail mail queries for my novel since mid June. The response time in the summer was fantastic, just a couple of days for the e-mail queries, not more than two weeks for the snail mail queries.
But by mid September things came to a halt, with only a few replies from both formats finally trickling in now Yet, everything I've sent out just since the first of this month is getting almost immediate responses for e-mail, and I'm already hearing back from snail mail queries sent out just last week.
This is exactly the opposite of what I would have expected--summer and the holiday season slowing down. Perhaps that's what everyone thinks and it's best to be contrary
Don't get depressed, it'll slow you down--hinder your odds of connecting with the right agent. Strike a balance between moving on to a new project and continuing to send out a steady flow of queries.
Hang in there