The test checks whether you have the skills and performance of a senior python backend developer and as you say, at the time of taking it, you didn't have the required proficiency.
You can apply 365 days after your last application, though please note that you have to be better than the last time.
What if all you got is an Ak47 and they have ships, tanks, air fighters and drones in the sky?
Please think what would happen if the tables were turned - your country is invaded by a much bigger nation with a technological advantage. Would you organize a peaceful protest for your enemy to ignore?