Help - which way should I go?

Hi - I'm currently applying for a new job in a new sector, I've been off the computer for years, but have previously held office jobs that involved a lot of typing and data entry and I was very proficient. This new job requires a minimum of 40wpm @ 95% accuracy I just did a test and I'm sitting at 30 wpm with 100% accuracy but I'm hen pecking and not touch typing. Is there any chance I can learn to touch type in a week, or a way I can up my speed enough over that time? or am I out of luck/time? They may be lenient, as I am over qualified in most other areas, and am attempting to improve this at the moment. But the question is - relearn 30 years of bad typing, or keep trying to improve my hen pecking?