Over and underwatering—>same symptoms

When they are this small and the soil seems dry when doing the finger test than feel free to evenly distribute enough PHed water to get the top of the soil wet all over. Don't need a lot of water, just enough to get everything wet. You want to avoid splashing any on the leaves if possible. Usually they will curl their leaves down if they have too much/too little water or are cold.

looks overwatered to me. just lift the pot. if its heavy its overwatered, if really light, its underwatered. A plant being that small has no good root structure yet so you have to water just tiny bits. until roots are developed and then SLOWLY increase. with a fully developed root system u can feed around 0.8 of the pot volume it is in. like 4l pot this means 3.2l of water AT MAX when the plant is big and the root system developed. we all did this, some never learn but you will. keep on growing bro!