I don't think it looks that bad... for thickness, you can buy a mane comb that has a blade in it... and thin it out... should look something like this...
I'm hoping you'll be able to find one in your local saddlery. They're usually inexpensive... and I don't use the comb side, with thick hair it just breaks it... just use the thinning blade.
Hope this helps!
Haha, I actually use this. I've had two-the first one broke, and now I have another.
And for now, I'm just going to let it grow out and deal with it in the spring when I start showing again.