I just dealt with this situation with one of mine. It took a bit of time but you can overcome it. For now, you have to understand in her mind she's winning. As long as she keeps striking and you back off, she'll keep it up. It's a behavioral response that you are reinforcing. At some point you're going to have to just go in and get her in order to break the cycle. I ended up shedding a little good voluntarily just to get over being tagged. It'd been 20+ years since it happened so I was quite nervous about it. It's not that bad. Sure it stung a bit, but I got over it. You're going to need to grab a rear coil while distracting her with your opposite hand. What I did was get her up, then let her strike out at my free hand a coupe of times. Then I came up and over her head from behind to force her into a defensive Ball Python position....balled up. When she uncurled, she was much more relaxed. Straight body and flicking. When she coiled back to strike again it was rinse and repeat. I kept her out for a couple of minutes at at time and only put her back when she was relaxed. It's a battle of wills at this point. Put in the time and you should be able to turn her. Then again, some snakes are just like that. Mine still has a go at me, but I can handle her when I need or want to.
Good Luck,
Dave