Hi there!
As a general tutorial I would recommend you have a look at this one right here: Session 1 of CFD Master Class - just to get a little bit “warm” 
It also helps if you share your project link with us so we can see what is going on inside of your project, the BC (boundary condition)/setup does not look right to me because you do not need any layers at the symmetry face but in height direction (normal to the wing) of the airfoil. I generally recommend looking up some papers regarding parameters like angle of attack, which BCs have been used.
Also (without having access to your project) I would say that your airfoil is 1 component which makes it hard to assign separate conditions so you would have to use the split operation inside of the workbench
Jousef