dont be so frustrated queen..you just need to learn a few technique on how to make your own custom brush..i think you can download those brushes at the download section..this is few tips from my friend to me ..and i pass on to you.." the big challenge to make hair is 'patient' "...its time consuming..but never give up..ok!

gud luck!
here if you need illustrator brushes..free signup..but lots of benefits..
Adobe - Illustrator Brushes