Good hearing protection when shooting is a must. Once your hearing is damaged it’s damaged for good, there’s no way to fix it. I’m a big fan of doubling up on hearing protection with both earplugs and electronic hearing protection on top of that. My goto ear pro are Surefire Earplugs with Peltor Sport Electronic Hearing Protection on top of them.
I recently stumbled upon some affordable earplugs from Decibullz that are custom molded to the shape of your ear, which helps block out noise much better than traditional foam earplugs. Decibullz retail for just $25.99, they’re made in the USA and are available in multiple colors. You heat them up then insert them into your ears to custom mold them. Custom molded earplugs are usually much more than $26. They’re available with free shipping over on Amazon.