Prediction for a new year

Someone posted a similar question and it might be worth checking out this workflow:

You could try and adapt that not just with the GDP numbers but with the unemployment rate.

If this is for a educational assignment or something please try to read and understand the material that is given to you and try to understand if the examples provided do represent the theory. It might especially worthwhile to look into the effects the various models have on the prediction. There are more models out there and you might want to select some where you can then explain the effect they have.