go to the 2 warehouses in time to arrive until 6 pm at the shelter, the best thing is whenever jack is at the shelter to let him rest.
And always invest the resources in the greenhouse or in the water pump / purifier.
after a while you can invest a little in solar panel / wind turbine.
And the lvl 1 replicator is already good.
after you got the vehicle and gasoline the game will be much easier.