Overwatered - Should i start over?

Anything in veg is always recoverable, this doesn't look severe, I have seen and recovered much worse. When I see yellow leaves like this at the bottom, I think nitrogen deficiency. You mentioned the soil aeration, that could also cause symptoms like this. I wish you well!

Hello. I would like to suggest you make the soil more aerobic. Please google Hydrogen Peroxide for plants and mix some with your water. Chuck.

Yo empezaría por quitar las hojas bajas que se ven amarillas... La carencia de nitrógeno visible puede deberse a un bloqueo o simplemente falta de aporte... Personalmente haría un lavado de raíces antes de volver a abonar y algún aporte de clacio y magnesio vía foliar. No las tiraría ni comenzaría denuevo, son recuperables, ganarás tiempo si las recuperas ya que solo será un par de semana además que tendrás plantas con un tallo más grueso.

I would not. They look very hungry. Try to nurse them back.