I can see the top hand is too low which is why you feel you can’t hold yourself. Gripping too close the the body make it feel like you’re gonna nose dive!! Not fun! I know a lot of places teach this as a beginner or intermediate trick but I have it listed as advanced because it requires a lot of hand strength (which is why it’s listed after spins) and you also need to develop grip control in your hands and thighs to allow your body to slide into place like dropping the hips in Superman. Does that make sense?

You’re not doing anything wrong, it’s looking very good, you just need more time and practice.

You could do my VIP plan for Superman if you like! It’s a week long plan just for Superman https://www.studioveena.com/tutorial/week-10-superman-1155/

Let me know if you have more questions, you’re doing great.