This is going to sound very nasty, but please get some professional help with attachment now.
Over the next month or so your babies mouth will grow (i.e. attachment should get better), but she will also get a much stronger mouth (i.e. damage from poor attachment will get worse).
I think you need to explore options like:
*joining the ABA and taking bub along to a few meetings where people can help you with attachment
*seeing a lactation consultant (it is likely that one session would fix this)
*lactation clinics or day stays in your area

At 9 weeks, unless you have huge nipples or bub has a really tiny mouth or a very high palate, there shouldn't be attachment issues.

You've hurt for long enough - get some help please!