I have created a Spanish deck with 500 cards and Anki keeps cutting me off after about 5 minutes.
I’ve set the “new card” limit to 20 and “review card” limit to 100 or sometimes more, and it just keeps telling me “Congratulations, you have finished this deck for now” and doesn’t let me do any more reviewing.
If you’ve already met your daily limits, or there are no more cards that are available to study today (due, not suspended, not buried) – you might be done for the day. You can use this extra time to get more acquainted with the app (see the advice below).
General advice for beginners –
Read Getting Started, so you know what Anki can do – and Studying, so you know how to use it. Skim the rest of the manual if you have time, so you will know where to find things when you want them later on.
Set one short (5m-20m) learning step and relearning step.
Optimize your FSRS parameters (and then come back monthly to re-optimize).
Study all of your due cards every day – no backlogs, no long re/learning steps to carry cards over to the next day.
Don’t introduce New cards at a faster pace that you can keep up with the reviews on. [Expect that your daily workload will be 8-10x your daily New card limit.]