Hey Renato,
I am the developer of an Android app that had more than 1000 downloads a day and a huge number of active users. I ran into the same issue that you are facing right now - I was just a programmer and didn't really have the time to support everyone.
One way I managed to cope with it was setting up an autoresponder that redirects over to a FAQ to help with most common issues / requests. If something wasn't covered via the FAQ people still came back to me and I jumped in to help.
As most of the others here replied: Don't jump the ship and sell immediately - try to power through the next few days and use this as an opportunity to learn.
That really is not true. This year's edition scaled up from 1 event to 10. We want to take care of each event and make it awesome and not just organize a ton of events that are not fun at all.
One way I managed to cope with it was setting up an autoresponder that redirects over to a FAQ to help with most common issues / requests. If something wasn't covered via the FAQ people still came back to me and I jumped in to help.
As most of the others here replied: Don't jump the ship and sell immediately - try to power through the next few days and use this as an opportunity to learn.
Cheers