How about some math...

So, if the earth is flat, and being accelerated up at 9.8m/s/s, it would have stopped accelerating a long time ago.

The speed of light is 299,792,458m/s.  If the Flat Earth is accelerating at 9.8m/s, every second, then
it would take 30,591,067 (299,792,458 / 9.  seconds to reach the speed of light (SoL).  That equates to:
509,851 min
8,497 hrs
354 days

Given that fact that nothing can be accelerated beyond the SoL, a concept that is tested daily at particle accelerators, The FE should have reached a speed near the SoL in just under a year, at which point it takes more and more energy as you approach the SoL. 

Since I have been alive and walking on the earth for well over a year, I cannot believe that the FE is true.

Your calculations are wrong.

From the FAQ:

Q: "Doesn't this mean we'd be traveling faster than the speed of light, which is impossible?"

A: The equations of Special Relativity prevent an object from accelerating to the speed of light.  Due to this restriction, these equations prove that an object can accelerate at a constant rate forever, and never reach the speed of light.  For an in depth explanation: Click Here

So, if the earth is flat, and being accelerated up at 9.8m/s/s, it would have stopped accelerating a long time ago.

The speed of light is 299,792,458m/s.  If the Flat Earth is accelerating at 9.8m/s, every second, then
it would take 30,591,067 (299,792,458 / 9.  seconds to reach the speed of light (SoL).  That equates to:
509,851 min
8,497 hrs
354 days

Given that fact that nothing can be accelerated beyond the SoL, a concept that is tested daily at particle accelerators, The FE should have reached a speed near the SoL in just under a year, at which point it takes more and more energy as you approach the SoL. 

Since I have been alive and walking on the earth for well over a year, I cannot believe that the FE is true.

SR forbids anything from passing the speed of light. You have to use this equation:

"w=(u+v)/(1+u*v/c^2)

where u is the current velocity, v is 9.8m/s, due to the earth accelerating at 9.8m/s^2 for one second, c is the speed of light, and w is the new velocity, to be used as u in the next iteration.  Start at u=0 and let me know how long it takes us to reach the speed of light."

another victory for FE