Not a doctor, but the foundation of ear health is good craniofacial structure. The ideal structure develops from robust thyroid and liver function paired with adequate fat soluble vitamin intake—especially vitamin K—and plenty of minerals. It's not too late to grow your face more even if you've been deficient. Grown adults are capable.
Many hearing problems are quite simply earwax clogging the canal, which wouldn't easily happen if the correct structure was there. Even if it's not earwax, better structure helps prevent infections and stuff. I've seen earpicks with cameras that plug into a smart phone or tablet on amazon for like $30-$50. Might be worth cleaning out your ears sometime if you can do it safely. If you had your wisdom teeth removed or they're impacted, your growth and development of the face and jaws was stunted.