Another help question...brake pedal feels stiff

[MyMustang]

I didn't really notice it until i drove a couple of others peoples cars (none of them mustangs) but can tell that my brake pedal feels kinda stiff compared to others like it doesn't feel right in my opinion... I can see that I have bout 3-4mm pad left. Low but not gone. I just have no give at all seems almost like I have manual brakes. I work with some ase mechanics but wouldn't trust em to change my oil. Brakes don't lock up or anything and never seen abs light come on while braking hard. (sorry if in wrong section)