Re-submitting queries

So after two years and heavy revision of my manuscript, I’ve decided to start re-submitting queries to agents. My original goal in editing my manuscript was to self-publish using Smashwords and Create Space, but after all the work I’ve put in, it seemed like it would be worth trying a few more agents. Definitely worth trying, but I did completely forget how 31nerve-wracking it is to send out your query to agents and then have to sit still waiting for a response.