Romeo used to bite and chew on my hands until they looked abused. I'd have bruises and tiny scars!

It took awhile and I've had to try many different methods before I found one that worked.
I think the first thing you need to decide is if you want her to bite you playfully at all. I have no problems with Romeo playbiting so long as it's not hard. Some people I know don't want their dogs to bite at all. For me, I taught Romeo bite inhibition (to bite softly), while those others taught their dogs bite prohibition (not to bite at all).
Bite prohibition is taught by either redirecting your pup to a chew toy every time she bites (which will mean you'd have to have toys everywhere or carry one with you whenever you think she'll bite) or giving your pup a time out every time she bites (by removing yourself from the area or put her in her playpen or some other place that is boring as heck with nothing much around for about 3 mins. Then resume play again.). I would use a command like No Bite, just before you give the toy or take yourself/herself away. The first method is purely positive coz there's no punishment. The second one involves punishment to the extent that you deprive her of your companionship and fun! Don't expect miracles. It'll take a while before your pup gets the idea. But remember to be consistent. The minute teeth touch your hands, redirect (to a toy) or remove (yourself/her).
Bite prohibition is fairly similar, except that you let your dog mouth you up until the pressure she exerts starts to hurt then say Gently (I use "pain" because that's what my parents will most likely say!) and remove yourself or her for a 3 minute time out. Gradually increase your sensitivity to the pressure so that when she exerts just a bit of pressure you do a time out. This is the hard part, coz it's hard to gauge the pressure consistently. But don't worry. I've found that it's not affected the trainng much. Eventually she'll realise you have paper thin skin and any amount of pressure will mean an end to the playing.
I've had success with the bite prohibition with Romeo. Now when he gets too excited while mouthing and starts to put a bit too much pressure I say "Pain" and he lets go then when I let him mouth me again, he does it gently as before. My hands are bruise and scar free!
Having said that however, do provide her with many chewy toys. She's likely teething and softer rubbery materials really help. Also cold icey things will ease her discomfort. The mouthing of hands actually does lessen once their baby teeth all fall out!