Hello,
What seedlings do you have that aren't doing well?
How are they planted? Ground? Potted?
Do they receive full sun?
How often are you watering? I live in 9a and it's getting pretty dry right now.
Can you post pictures?
As for the okra leaning north, it doesn't seem like anything that should ring alarm bells.

I have 4 okra seedlings that are like this in the picture, but the other okra seedlings are doing okay I think. And the watermelon ones are just sorry looking, they are as small as they were when they like 2 weeks old.

They are on a raised bed (18 inches). They receive full sun. The wind is very strong here, I didn't have anything to block it but some shade fabric, so I blocked the south and the east side of the raised bed from the wind because a couple of my taller okra seedlings were getting blown so much they were standing at 45 degree angle, I thought the wind was going to uproot them, that's why I blocked the wind. Now that they're bigger, I removed the east side fabric leaving the south one still on there.

I used to water everyday, and then was told that I watered too much, I cut it to once every other day, and now I use a moisture meter and only water when it gets down to moist, which I think is about once a week or so.