10 day seedling ruined? Help needed

Best advice I can give for you for the seedlings stage is to keep humidity high af. As they're growing their roots out they can't absorb much through them yet so watering them through their leaves helps dramatically. Get a little spray bottle and some kind of plastic dome (I've used the top of a colabottle) and spray the fuck out of it daily, will keep rh very high in the seedlings own little atmosphere! 👍🌱Good luck

relax.. looks a bit dry, though.. unless you are just about to water. water a 4-6" radius if in a "too big" pot for the current size. Don't feed, yet. Especially in soil. It's green. It's not wilting. you are doing fine. cotyledons or first set? the non-serrated can do wahtever tehy want, don't worry. some come out looking quite horrid, lol. The first serrated blades.. no worries, they come out fugly, too, sometimes... as long as it isn't accompanied by change in leaf color or wilt or falling over, you are probably okay. growth will pick up.. wait 2-3 weeks and it'll be crazy. give it another week before nutes.. your soil likel yhas some too, so if you start that early, start with less than instructed. If you see a hint of yellow on the cotyledons, you can start fertilizing.. .that tells you the original energy packed with seed is starting to run out. you have plenty of time to avoid a slowdown.. .it'll suck those cotyledons yellow over a day or two, probably... so you'll see it happen and easily react.

If the soil is wet, do not give water until it is completely dry. If the leaves are dark green and crumpled, there is too much fertilizer in the soil, if it is so transplanted, using a little fertilized soil and slightly wet the plant. You have a 50/50 to still save the plant, although the harvest will likely be compromised.

Looks like she will be fine.. keep it up.

Just let it dry.. it should start back up again as the roots dry and start to grow again! Good luck!!