Imagine you were a recruiter. What would you think if you saw "Enterprise Personal Management Assistance Executive" on a CV?
Get rid of Enterprise - that's a meaningless filler word. Same for Executive. You're left with "Personal Management Assistance".
My view would be that you're Management's PA.
Hence the 'tea' comment.
If you're looking for credibility, try elsewhere.
Oh and who offers a fresh, inexperienced grad the opportunity to "in effect" manage the finance dept?
You've made the coffee; now wake up and smell it!