Left AirPod is way more quiet than my right one

my left airpod is way more quiet than my right one; when i try to listen to things with my left airpod it has to be on full/almost full volume to hear it. i’ve tried everything to fix it but the sound won’t work well. i have tried to clean it out by getting rid of earwax, i checked the settings and the sound for both sides

(right & left) should be equal but they aren’t. my left airpod doesn’t have water damage nor has it had any damage to it, how can i fix this?

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