Naw as long y'all are a citizen of Illinois I'm 14 and I got mine Plus you have to be 21 for Handguns 18 for long guns (rifles, shotguns) 18 for hunting pellet guns And 14 for certain pellet guns but...
You can go to the Department of Licensing. Depending on where you are, there are locations that may be open during the weekends if it is more convenient.