Sorry but it's going to be very hard to find HR jobs in Germany when you don't speak German and most local companies are outsourcing their departments abroad anyway. My employer spent the last 5 years gutting their HR department and setting it up in Portugal.
Besides, Data Science is a broad field with way more graduates than positions, especially in the USA and Europe.
Where are you from? You'd probably have more luck finding non-qualified jobs that don't require German given your situation, but even then I'd reconsider the master's degree too, DS is one of the lest future-proof paths to pursue in 2026.
But no doom and gloom! I'm sure that the 11 years of experience that you have can be leveraged, maybe just reconsider your approach.