Is there anyone who is skilled enough at MtF vocal training to be able to help/give advice to me?

I unfortunately don't have money for vocal training in any form, so I'm really hoping there's someone on here skilled enough (and charitable enough) to be able to guide me through it or give me some helpful advice to master it. I really want to get the female voice down ahead of time for when I transition, and I also would love to be able to nail it so I can be convincing enough to at least be believable as a girl before I actually physically become one. And I really would love to be able to be a believable girl before Otakon so I can cosplay as a schoolgirl. No meanies please, I can be a bit emotionally fragile. Thank you~ n_n;