I've said it before, and I will say it again - conferences are not only the best way to meet agents, get tips from other writers, and learn about the publishing industry, they make you feel like a writer. We all need community, and this is how we, as writers, get the necessary incentive to keep writing.
If you miss your perfect conference this year, you may be able to catch it next year. Many conferences are annual events. Planning ahead may also lower the cost, as quite a few conferences offer scholarships and discounts for early bird registrations. (Note: I include conferences that are sold out so you can plan ahead for next year!)
Publishing ... and Other Forms of Insanity: 61 Fabulous Writing Conferences in June 2017!