There are many ways to modify this pose. It’s a difficult balance and requires a really strong supporting leg but there are ways to make it work for you.
Try it in side plank. This requires less strength on the supporting leg but gives you the ability to have a go at balancing, taking the gaze up, shining the heart and hips forwards, maybe lift the top leg too.
If all this works try it standing and have a wall behind you for support.
Have fun and smile!