Keep handling her at least once a week, wear gardening gloves as protection, and just wait. Almost all biters calm down after their 2nd winter, when the hormones turn on. (You can't get a mate if you strike at everything indiscriminately.)

Even Mr. Nibbles and Nancy the Attack Pewter stopped biting me when they got to their 2nd winter. (Though Nancy does still bite when she's in shed. And she still knows how to make it hurt.)