Firstly, I want you to know you've been a huge inspiration to me, both personally and artistically! I've been working on a fantasy novel for years - the only story I've ever written that I can't forget about - and really want to start querying agents, but

Hi there!

That’s very exciting, and I know exactly how you’re feeling. It actually took me a couple of years to find a few beta readers who I feel like are great match for what I write, because it is important that you find readers who love the sort of things you produce, and who are also going to give you the feedback you need. 

The best way to find someone like that is to begin interacting with other writers, because, most likely, you’re going to find a great match with another author. Is there a facebook forum you can join? Are you present on Twitter? If so, can you use hashtags to find fellow writers such as yourself, who may be open to swapping manuscripts? Is there a book club or a writer’s group at your school or your community that you can join and start making connections? 

I know all of these things kinda sound scary, but it truly is one of the best ways to find readers who might be a great fit for you, or another author who would love to do a manuscript swap with you and provide you some great feedback.