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Yes. If you want to save seed for next year, here is some help.
http://howtosaveseeds.com/isolate.php

Okra grows poorly in cool weather, so we would not recommend that you plant it in the fall.

I like neem oil for spraying vegetable garden plants. It is both a pesticide and a fungicide, so takes care of many problems that can arise in the garden. It is also organic and safe to eat. I treat my garden 1x a week with it.

This article will help you: https://www.gardenguides.com/114657-harvest-okra-seeds.html

The brown edges and yellow leaves is typically an indication that the plant is not getting enough water. A less common reason would be issues with the roots, but because this has happened in more than one year, I would go with not enough water.

If you water frequently, you may want to try watering less frequently but for longer periods of time. This will allow the water to get deeper into the soil, which not only encourages the roots to go deeper so the can find more water, but also ensures that the water will not evaporate quickly from the soil surface.

As for the production issue, this may have been caused by a pollination issue. Bad weather, either too hot, too windy or too rainy, can keep pollinators away from the plants and cause pollen to clump, making it harder to transfer. Also, pesticide use in the garden can kill or deter pollinators.

Are they bulbs or tumor-like growths (which could be a sign of a pest issue)? If you could send us a picture, we could be of more help in identifying this problem for you.