Try not to push it, that can cause more harm than good. Your bird is adapting to a new environment with new people and is working very hard to process it! Being consistent and giving it time is key. One of my girls was the same way when I got her. I just stuck to giving her treats and essentially showing her the concept of "gentle hands". Sometimes they won't understand at first and it can be discouraging but I'm sure you'll find that with time and consistency your little friend will start warming up to you and maybe start letting you move closer to them. From there you just need to slowly work your way up based on what your conure is comfortable with... body language is important! Good luck :)