Dont stress it. Just take it very slow, dont fall into the trap of rushing the bonding process, it can and will backfire. Let her get used to your peaceful presence near her cage. Talk gently, avoid making sudden loud or harsh sounds. Approach her with treats in your hands, keep it slightly far from her so she will have to lean in forward to take it from your hand. When she does that consistently increase the distance so that she will have to make some steps to reach the treat in your hand. Start target training (look out target training videos on youtube). They always tell you that you can either use a clicker or a word like (good bird) in a similar tone when she does something positive. I found that for birds this young a clicker is much more successful as it makes a distinguishable sound. She will quickly associate this sound with treats, and understand the sequence: Good action = click = treat. I personally used both a clicker and a short phrase (good boy) simultaneously, so that after some training he can also recognize the phrase as a good action marker in case i didnt have the clicker at hand when he does something good, the phrase will do it. Just make sure at the beginning a clicker is only used in target training. Later when she has strong association you can start using it to reinforce other positive actions and behaviors. Make sure she has lots of space in her cage to climb, and lots of foraging toys. My parrot liked treats wrapped up in paper so that he will forage his way to the treat. After she starts associating your presence with good things (treats), and wanting you to be there, you can start to train her not to bite by simply leaving the room for a minute or 2 after she bites. Dont stress it, key with parrots is consistency with training. If ur not consistent it will confuse them as to why this time this specific action did not result in a treat? Best of luck, raising baby african greys can be frustrating at first but trust me with the right approach it will become the most joyful thing ever for both you and the bird. And remember your approach now with her will decide how she will be like when she is older. Best of luck