Cats need to have their claws trimmed about once every 10 to 14 days. Make sure you’re only getting the tip, and not the pinkish part called the quick.
I recommend only using a pair of nail clippers designed for cats.
To make trimming claws easier, you can use the kitty burrito method. This involves wrapping your cat gently in a towel with their head sticking out and bringing out each paw in its turn for nail trimming.