I cannot speak to Indiana.
However, in general as to training, I highly recoomend that you attend a quality school.
I had been shooting for 20+ years before I took General Defensive Handgun from Insights Training in Bellevue, Washington.
I had no idea what I did not know until I took the course.
Marksmanship is only one leg of a stool, the others being tactics and mind set.
Since the first course I have taken Intermediate Defensive Handgun, Low Light Handgun Skills, Pepper Spray, Defensive Folding Knife, and Cane Self Defense.
All immensely useful and informative. And the courses are integrated.
As in the continuum of lawful force and tactics.
It's better to spend some of your money on training and some on ammo rather than all on ammo.
Until you find out what you don't know, you might just be reinforcing bad techniques or tactics.
Here are some training organizations:
Insights Training
www.insightstraining.comGunsite Academy in Arizona
www.gunsite.netFirearms Academy of Seattle
www.firearmsacademy.comThunder Ranch in Texas
www.thunderranchinc.comYavapai
www.yfainc.comGabriel Suarez
www.suarezinternational.com (he also wrote some excellent books)
Get the training. It will be the best money you ever spent.