Wind has no affect on my average speed,it's still distance/time.It does affect my overall speed though....

I would think the wind would increase the time, while the distance would remain constant... Thus the average speed would decrease.

What is the difference between overall speed and average speed?

Division....

Think of it as 2 vectors, in opposite directions.

Speed is the absolute value or magnitude of velocity. It is a scalar quantity.

"The average speed of an object in an interval of time is the distance traveled by the object divided by the duration of the interval."

Speed is never negative, it's always >=0, it doesn't cancel out. Velocity can do that though...

Average speed and average velocity

I just know that headwinds make me look good. My lowracer has very little frontal area, so while a headwind will slow me down, it slows everyone else down even more. OK, tailwinds make me look good, too; at least until the point where I'm running out of gears. Same reason: aero drag doesn't start until I'm going faster than the wind (true for everyone,) and even then my smaller frontal area means less resistance and more speed above that point.