The first pic does look like too much nitrogen, but being curled like that i would almost expect your leaves to be green mirrors from being shiny, but things dont always work the same with every plant.
Where the leaves are canooing under i would say that they are seriously underwatered, they curl like that to try and keep moisture as much as possible.
You only water every 3 days but you caant work on a set schedule, you need to adapt to what your plants need, thwy have purple leaf stems aswell which coukd be genetic but chances are the plantnis not really getting what it needs.
Depending on medium and how fast the plant drinks you could have to water daily or your plant may wither away or your yeild seriously lowered.
as for finishing timwni would say between 4 -6 weeks, maybe longer.
The plants always take around 2 weeks longer than advertised so try and budget for that and mistakes along the way will only set you back further.
You shoukd also make sure that your nute solution is between 5.8 and 6.2 so nutes are available whwn needed.
