At the top of the 'Queal Progress' page in your dashboard, you should see your total of QP's on the left.
It's true that you can't see the worth of the gifts, that's because they currently go on the basis of levels. The higher your level, the more gifts will unlock. With every 5th level you'll reach you can pick one. If you don't pick one at - for example - level 5 and choose to save up, then you'll have two gifts to pick at level 10 and so on...
We know this is quite a complicated system, we're currently thinking about changing it to an easier one.
Hope this answers your questions for now!