I have heard a chess trainer say that if you are trying to improve, you should change openings after 3 losses with the same opening. (He was referring to tournament games.) That way you get familiar with a variety of positions.
The Alekhine's is an OK opening, but at your level you may do better to play 1. ...e5. Modern openings where you give your opening a big center and then counter-attack are more strategically complex.
Just a quick question, should I continue to do the Alekhine as a response to kings pawn? Or should I find another opening to do.