Sorry, friend, but no.
Hebrews 10:10 means what it means. Christ’s sacrifice was once for all. He offered “one sacrifice for sins forever” (Hebrews 10:12) so there is no need for a purgatory.
If Christ paid the price in full, there is no need for purgatory. If He didn’t, he’s not perfect and therefore not the Son of God. Your choice.
But bless your day anyway.
I guess that you do not understand the doctrine of purgatory, then. You are wrong, according to the Faith.