What is the first part to fail in the lighting of the brake light? [besides the bulbs] Right now my brake light statys on "bright" all the time and when I hit the brake lever it dosn't light up brighter to alert tail-gaters i'm slowing down

One of your brake switches are stuck.

Try to fiddle with the rear switch, its near the pedal.  Also try the front switch.

Thats the ONLY parts making it light up.

It needs to be adjusted looser.  The rear brake lever has a black cylindrical switch connected to the lever by a spring.  The switch is located behind the heelplate.  You can rotate the black plastic nut with a finger and rotating the switch by the head with your right hand.  Hold the nut still when you twist the switch clockwise.