Weeping plants

Hi I just bought plants a few days ago for landscaping our first house (yay) and already killing them somehow. 😭 They were sitting on the side of the house where they may have had slightly less than 6 hours of sun so I moved them to the backyard yard where they will receive more. (We are waiting to plant in our front yard until we get our tree) I was watering lightly every night and have since googled that is should be once a week (right?). Is there any hope to reviving these?