Is it feasible for you to take a Sabbatical for a few weeks or months, without jeopardizing you job or income? It sounds like you need a vacation from your job, and more than just one Sunday away.
This sounds like the same burnout that affects pastors, and causes thousands of them to get out of the ministry every year. Rather than a conference, find a way to spend some time alone; time to reflect, to pray, to re-energize, and to reconnect with your Savior.
I sincerely hope you can regain your first love without having to completely walk away from it. I will add you to my prayer list, Trent.