Any way to auto delete messages after a certain time?

Is there any local tool to automatically delete your messages in a given server after a specific time (like 1mo)? I want to preserve some anonymity and I'm not really a fan of someone being able to look up all messages I've ever sent if they just figure out what servers I'm in.

I assume Discord will still keep my messages to sell the data, but well, that's the price of using a free service so it's whatever. My goal is just to limit the amount of info that a malicious actor could find & use against me.