Please stop "freakin" out... I believe plants and all living things pick up on our stress we project
I look at your little seedlings, and see that they need no worry, just some love...
Take a small amount of water, and keep soil around plants a bit more moist...
It's too early for you to be having any problems, either you watered too much or too little...
Soil looks dry, too little....
Do not as some say: Flush, or water them with 3 times the size of your pot...
Do not flush them, do not worry about RH, or Run-off of your pint sized treasures...
Keep soil more moist, spray slightly soil with mister, do not spray leaves...
If you just keep soil moist, not overly watered wet, in two weeks you will be fine...
Good Luck...