There is no shame at looking at the meaning of the tarot card, if need be.
Of course you can ask questions, but the Tarot will answer in a very unexpected way. Most of the time, the cards may give you answers that you have to think through or to apply to your situation in a different light, if that makes sense.
And this is me speaking from my own experience with Tarot.
As for your meditation time crunch, I suggest you find time to meditate before you go to bed. That way, it will be very unlikey that anyone will disturb you.