Struggling Against M@A Opens

Hey all,

Problem is in the title. I'm noticing my win/loss ratio is more impacted lately by the open of my opponent than actual skill differences - Notably, I am getting badly beaten up in early Feudal vs. well executed M@A rushes.

Specifically, on 20/21 pop scout opens I'm pretty much out of ideas and out of patience. I'm beginning to wonder if, say, I scout an incoming M@A rush, whether I forgo scouts altogether.

Are there suggestions, outside of walling? I'm trying to focus on unit-centric defenses, and I'm playing in and around 15xx-18xx. Appreciate your thoughts!