My boyfriend is way too confident.

I never thought i would come to this conclusion about someone, but here we are

My boyfriend is way too confident, and has no shame at all. This is a problem though. The reason it's a problem is because it effects our lives, and it makes him a know it all, and his lack of shame or ability to care even at all what others think is a recipe for disaster. He acts as if he's always right and when he's wrong he flips the script to make him right or makes excuses.

For example: He does things that are extremely cringey when it comes to making buisness deals. I try give him advice on how to improve, and he rarely ever listens. He has lost clients because of this. He feels no embarrassment when he does cringe shit, because he doesn't care what anyone thinks.. which is great when it comes to stuff like how you dress, but not when it comes to owning a buisness.

Instead of using mistakes to learn and do better he rolls his eyes and moves on.

I try to give him advice to help him out, and he doesn't want to take it, or apply it because he thinks he knows all things.

Sometimes i feel like i need to tell him to stop being so confident, because his shit does indeed stink.