The problem with study bibles for a Catholic is that the “studies” in them are not authoritative and may oppose Catholic teaching. I have the Catholic edition of the NLT and it is not bad.
There is an “official” Catholic study bible, but I have some reservations about it. There is a study edition of the Ignatius Bible (Revised Standard Version, Second Catholic Edition), but I understand that it is not yet finished.
If your NLT is not the Catholic edition, and you can send it back to Amazon, please consider exchanging it for a Catholic NLT.