The IRS has processed some "test" returns early in the season but they always emphasize that they don't "officially" start processing returns until January 28, 2019.
It's a good sign that your Tax Return has been accepted (many have not!), but no guarantee you will get your refund any faster.
In the meantime, you can keep track of your return here: https://turbotax.intuit.com/tax-tools/wheres-my-refund/.
