there are times when u dont need to shade like that

Hey! No more pointed chin!! good work.... I agree a mirror would have been better than the photo booth snapshot you were working with!

I noticed that shortly after posting it....I am going to fix some of these problems.....thanks for the input!  :)

Nice! You did a great job giving shape to the face. A few suggestions:
The shape of the jaw seems a bit odd, very pointed and off-center. You might look at that again.
The line of your face by the ears and the jawline seem a bit harsh. All around the face you have an unbroken line of brown pixels, which needs breaking up.
Shirt-to-background is over AAed, while the left side of the face seems jagged. The bangs seem a little jagged as well. With 50 colors, they should be pretty smooth. You might also blend them more towards the skin color to suggest less solid clumps.
What's that notch of skin color on your left shoulder?
Your right eye seems a bit bigger than your left eye. Not a dramatic problem though.

Just a few nitpicks if you want to improve it! Overall, a well done portrait.

It's a good start, but I think 40-50 colors is a bit much.