Undoing changes made by wrong synchronization

i bought a new samsung phone and downloaded anki. i sync from my old phone to save my cards , when i sync the cards in my new phone , i accidently press the “keep ankidroid” option which wiped my old cards. Now im kinda stuck and need some help from you guys on how to undo that sync i just made , thanks!! :smiley:

https://faqs.ankiweb.net/restoring-an-automatic-backup-recovering-from-data-loss.html?highlight=backup#restoring-an-automatic-backup-recovering-from-data-loss

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