I second what SOCAL said. Use flight sim to learn how the instruments work. Now I would NOT recommend it for developing an instrument scan. I had a lot of trouble with my scan during my instrument training precisely because I tried to correct as I would in MSFS. Another thing is that FS doesn't replicate VFR flying accurately and you get into the habit of just looking at the panel and not looking outside. And if you grease the landings in the FS Skyhawk, don't expect to be able to do so in the real one.
Also, learning about FMC's from airplanes that you'll fly waaay down the road might not be that useful at this point. Instead get a copy of the FAR/AIM, Airplane Flying Handbook, Pilot's Handbook of Aeronautical Knowledge, and get your reading started for the private certificate.
