Any way of fixing moulded rose?

Hi! I’ve had this rose since January 10th 2025, It’s from my Grandad’s funeral, I’ve never pressed any flowers before and for some reason didn’t do any research on how to- so I stuck it underneath a load of heavy books and left it up until today (14/03/25). I had a look at it and unfortunately it’s gone moldy on both sides. Is there anything I can do to fix it? I’ve tried gently rubbing off the mould with rubbing alcohol. but it still looks like this, is there anything else i can do to fix it or have i completely ruined it?