Tired of hair - need ideas! *PIC*

Hi, lovely pic. 
You have dark eyes and colouring (cool category), so in my opinion I would suggest you stay relatively dark - I would not suggest you go blonde or anything too extreme. 
I think your hair would look stunning in a slightly lighter brown, perhaps coffee/cappuccino, with a selection of lighter brown subtle highlights.  I'm not quite sure how you would achieve this look at home without enormous effort though...

You can use Colorfix - it's fine, much less damaging than bleach.  It will lift your colour to a light/medium brown, but it will have a lot of brassiness in it.  If you want to go a bit red then you won't need to worry about the brassiness as much - but if you don't want any red at all (which is what may suit you best), you're going to need to use ash brown tones to counter the orange/red - and it makes things a hell of a lot more difficult!

However, just because you have cool colouring it doesn't mean you won't look amazing with red tones in the brown too.  There's so much you can do with brown hair, and there's so much choice.

Well, I've done it myself, I colorfixed my dyed black hair and the result was mid/light orangey brown.  It was bearable but I have light natural blonde roots so they looked dreadful!  I dyed it with Nice N Easy Light Ash Brown perm colour, and my hair was WAY TOO POROUS....it grabbed the colour at the sides and tips of my hair, and left my roots almost untouched.  Honestly it was so annoying!

To give Nice N Easy some credit, a lot of the brassiness disappeared on the hair, but now it's fading and I'll need to sort it out.

So, with that, I'd recommend you either get a good permanent and strand test (not nice n easy!), or use a semi and strand test to see how long you'll need to leave it on for to get the most pleasing results.  But beware semi fades a lot.

To be honest though you may not need to use a light ash brown if you are thinking about red.

Good luck anyways!  You'll definitely need to Colorfix first, and you may even need to bleach if you want red panels.

I think trying the wigs is a great idea.I know I have similar coloring to you.I'm a cool skintone,with dark hair,and I tan very easily (from being half american indian). I know personally reds can look really good.If your going to go blonde I'd stay in the more darker tones and ash range.I know anything with yellow washes me out really bad. And I think it would be the same for you.The best blonde I had was full foil highlights with a dark layer underneath for depth.Which I'm thinking about doing again cause it looked so good.Good luck