And when I asked my dad if I could buy a tablet, he was like, "You don't need a tablet." >_>
You remind me oh so much of someone I know... >.>;
Still, I find it strange that I have a sort of magnetism that attracts chinese people XD; It's not a bad thing, but it would be nice to meet someone online that's on this side of the planet too occasionally XD;
As a general rule, I don't use burn and dodge anymore for shadows... it's too hard to correct it after the fact.
Recently I started using a new layer, with varying opacity, on the "Multiply" and "Screen" settings and draw in my highlights and shadows as a big gray shape (in 50% gray)
This may not help much for that specific picture, since it already has shading, but in the future it may help, since you can edit the shape of the shadows easily with that method.
Also, it doesn't NEED to be gray, if you have a different colored light, you can use any color as long as it gets the right effect... (I just use gray since I do mainly simple white-light concept drawings...)