I am off to Notting hill today so a super short post so I will try and write another one tomorrow.
Damp healthy soil is key for young seedlings. Try and use an atomiser or water from the bottom so you don’t bruise or damage young leaves.
Also don’t give up.
My tomatoes were planted at the same time as my chilli peppers. My tomatoes are pretty healthy plants and my chillis are only just growing now.
They are still in the same tray so they aren’t being moved till after the last frost. They are nice and contained in their mini greenhouse so I water every other day.