Unfortunately the shrimp plant I bought 3 weeks ago has died.I actually think I killed it!!!!!I googled the plant and it said not to let it dry out,could I have drowned it to over zealous watering?

?Any tips on 'keeping' one of these plants if I decide to replace it?I live in Çalış but not near the sea,my balcony gets a lot of daily sun but I could have the plant in the shade if need be.