Confidence: having faith or belief in oneself and/or abilities
So, being confident during dating is just knowing you have what it takes to make it. Nothing about that is "bothering people", at least it shouldn't. Know what your character and abilities are and do your best with the rest. Dating is about learning what you're into and what they are into as well. Ask them questions that you'd like them to know about you as well, so you both learn. Date at places that are neutral and there isn't a ton of pressure. You don't have to be arrogant or loud, just know your worth and what you're good at.
You can do it. It sometimes feels like a lot, but you got this.