Let's try some easy math:
There are approximately 1.2 billion Catholics world wide;
If merely 1% of them 'ask' Mary for help just once each day;
that means that 12 million separate prayers are headed Mary's direction every day.
Given that there are 86,400 seconds per day... (24 hours times 60 minutes times 60 seconds)
...that means that Mary has to handle approximately 139 'requests' per second!
Purty good fer someone NOT 'devine'!
You forgot your sarcasm tag! Those who abide in Heaven are outside of time and space, so no real problem there.
Our Brothers and Sisters in Heaven are glad to help us, as we are all part of the Mystical Body of Christ.