When it comes to describing something that erodes or consumes slowly over time, the phrase "eats at" is common. However, there are plenty of other ways to describe this same concept and add some variety to your writing. Instead of saying something "eats at" you, try using phrases like "grinds you down," "chips away at," "gnaws at," or "nibbles." Each of these alternative phrases offers a slightly different nuance while still conveying the same basic idea. Trying out different synonyms for common phrases like "eats at" can help your writing feel more creative and fresh.