When people don’t understand you, instead of raising the volume of your voice, why not try raising the level of your explanation? The challenge you face with those who don’t understand you is a challenge of comprehension, not a challenge of hearing.
You can find a successful man with no friends, but it’s impossible to find one with no enemies. This is because enemies are conducive to success. Love your enemies. They provide motivation to succeed. Your friends can tolerate your failure, but your enemies can’t.