So this is how i personally develop clairaudience and you can try it out and see if it works for you
Before sleeping every night lay flat on your bed and close your eyes and try to listen to everything at once while you try and start sleeping.
After a while you'll be able to start hearing vague sounds note the sounds down and meditate on them and with tome it will go stronger. Don't overdo it and be wise and practice discernment and don't label everything you hear as Clairaudience.
If you have any questions feel free to ask
Before sleeping every night lay flat on your bed and close your eyes and try to listen to everything at once while you try and start sleeping.
After a while you'll be able to start hearing vague sounds note the sounds down and meditate on them and with tome it will go stronger. Don't overdo it and be wise and practice discernment and don't label everything you hear as Clairaudience.
If you have any questions feel free to ask