Re-curling wigs, wig placement, other stuff about wigs...

[HollyDollyDancer]

Hi everyone,
I was wondering if anyone knows how to re-curl a wig because i have some really really really really fuzzy curls on the top of my wig.
Also I have really really really thick hair and a sensitive scalp. When i put the wig on, it hurts, and when i finally have it on, it gives me a headache. Is anyone in a similar situation and if so, what did you do to ease it?
And also what is the best way to place a wig and other stuff to make it look really good.
As you can see, my full wig isn't exactly my best budd at the moment

Please help,Thanks!
Holly