Welcome sir and congrats on the decision to become a gun owner/shooter! There are a lot of very helpful people here in the club that are always willing to share knowledge and skills with all levels of shooters. I will send you a message shortly with information on an excellent instructor. Some friends from work and I are going to be going to Targetmaster in the near future. We're more than happy to have ya along and I'll post up details once we've nailed down the time and date.
As for indoor ranges...
1. Targetmaster- Rt. 202 just over the PA line (http://www.targetmaster.com/)
2. DE State Pistol Club- membership required or attend w/ a member.. they also have action pistol shoots open to the public on Mondays and the 2nd/4th Wed of the month(http://dspclub.org/public/)
3. Southern Chester County Sportsman & Farmers Association- membership req or attend w/ a member (https://sccsfa.org/)
4. Shooter's Choice- Dover/Smyrna area (http://www.shooterschoicede.com/)
5. Bridgeville Rifle & Pistol Club- Bridgeville DE (http://bville-rifle-pistol.org/)