Getting less and fewer correct is not easy—unless you have a know-how up your sleeve to memorise which one is which.
Here’s how to fix the problem:
You may use two different procedures to get less and fewer correct. The first method is less precise, and the second is a tiny bit more tricky.
First strategy: If you can count it, just use fewer. If you can not figure it, then use ‘less’.

E.g., less desire; fewer hugs

less cash; fewer coins
Second strategy: Less and fewer describe names. If you are representing a singular noun (i.e., you can use ‘is’ after it), then use that a less amount. If you’re calling a plural noun (i.e., you can use ‘are’ after ‘it’), then use fewer. (This way is a bit more tricky but much more reliable.)
E.g., affection is; less affection;

hugs are; fewer hugs

money is; less money;

coins are;  fewer coins