Yes, EMPHATICALLY it can teach you something...once I tell you what it is I'm sure everyone (who drives in real life) will agree with me.
Test yourself by doing the following:
#1. Pick a car you like, then drive the Nurburgring Nordschliefe WITHOUT CRASHING ONCE; take note of your time. You may want to do this a couple times so you get a feel for an average time. Remember, NO CRASHING, nor going off the road!!! In real life that is death, dismemberment, property damage, ruined tires, pissed off landowners, damage to your car, increased insurance rates and/or soiled underwear.
#2. Now, do the same test, except have your friends call and/or text you at random/various times, and try to answer/text them back. Try looking at a map while driving, or eat a hamburger, or set your radio next to you and fiddle with the treble and bass. Or you could have a few mates sit next to you (or behind you, ideally) screaming and carrying on.

Then check your times. It goes without saying at your age (but one never knows...) that the test can be done after having a few pints as well.
#3. Check your times.
#4. Reflect on how dangerous, stupid, shortsighted the above behaviors are.
#5. You will have just learned what 99.9% of the teenage girls in the U.S.A. seem to be incapable of learning

(sorry, a bit sexist, but I calls 'em likes I sees 'em).
If I was teaching a Drivers Education course, I would most assuredly incorporate GT into my curriculum. I know it isn't quite the answer you were looking for, but in all seriousness, please try it and have your friends try too. You will be ASTOUNDED at how much harder and more dangerous your driving is.
That being said, congratulations!!!