If you don't have a pressing deadline, stop thinking in terms of cards due and completing all of them. Timebox instead. Let's say you can afford an hour (for

If you don't have a pressing deadline, stop thinking in terms of cards due and completing all of them. Timebox instead. Let's say you can afford an hour (for example) of time per day for Anki. Start the hour reviewing what you can before entering new cards. If you don't finish your reviews by the end of the hour, that's okay. They'll be waiting for you tomorrow. Some days will be spent only reviewing, some days will have very little reviewing and you can spend more time creating new cards for new things you've learned. It's natural autoregulation. By focusing on just being as consistent as you can, you can make progress without the anxiety.