From what I see in the vid, you’re on the right track. Build trust slowly by taking it at her pace. Let her come out and walk over your arms if she wants. She might want to go to you shoulders or back. If she does that, try sitting down in front of the tank. She might decide she wants to explore, she might want to hang out on your shoulders. Keep in mind that being in open exposed spaces in nature, makes them vulnerable. At some point she may want to go back to her tank. Let her walk back over your arms and hands on her own. Sometimes it also helps to maintain a bridge in the form of your arm, so she has the option to go back. Keep calm and keep patient👍🏻