Your friend is an idiot. If it takes you a full year to see a 6 pack from where you are, you've done something very wrong.
Why does it matter what results I predict? My guess is you should look in the mirror and look much better than you do now. But why not just do the things you're supposed to do, and see what happens? You seem very impatient, as if you HAVE to know exactly what will happen. Too many factors come into play for me to guess this. I don't know how much you'll cheat on your diet, how consistently you'll go to the gym, how hard you'll work there, how active you will be outside of the gym, etc etc etc.
My advice is to work as hard as you can to achieve your goals. If you work hard, you will have results sooner or later. If you aren't where you want to be in 3 months, just keep working.