Certified GKH Gardening Expert
If that is the brightest spot in your house, then you will need a horticultural lamp. They are stretching and falling over due to a lack of light.
Once you get more light on them, they will stop falling over, and start growing very compact!
This article will help you to grow okra: https://www.gardeningknowhow.com/edible/vegetables/okra/planting-okra.htm