I have there a pool of different exercises which I want regularly to repeat
Tag all the cards you want to regularly repeat and put them into a filtered deck, go through them to your hearts content.
As soon as you are done with a card and dont want to keep repeating it simply untag it instead of deleting it. Its a shame for all the work you put into making those cards!
You can easily edit tags with this extension (look at the thread as well!):
https://www.reddit.com/r/Anki/comments/qmk4oi/comment/hja0jaa/?utm_source=share&utm_medium=web2x&context=3
Also ill just quote myself from another post:
So yeah, keep that in mind ;)