담 is kind of a partition dividing places 벽 is wall

나는 새로운 음식 먹는 것을 좋아해요. it may sound more natural if you remove 을 in front of 음식.

~어서/~아서 is like Then in English. ~때문에 is a closer meaning with Now that in English. 나는 너무 빨리 먹어서 배가 아픈 것같다 I ate too fast then I am like to have stomachache 나는 너무 빨리 먹었기때문에 배가 아프다. I have stomachache now that I ate too fast.

as nuance, both are like similar meaning though they are used differently. 강렬하다 is used when you describe about image things and emotional things. For example; The first impression with Tom was 강렬했다. the other 격렬하다 is likely to be used in physical stuff. For example; they fought 격렬하게/ We hugged 격렬하게. I hope you can understand what I explain. keep up learning Korean!

as nuance, both are like similar meaning though they are used differently. 강렬하다 is used when you describe about image things and emotional things. For example; The first impression with Tom was 강렬했다. the other 격렬하다 is likely to be used in physical stuff. For example; they fought 격렬하게/ We hugged 격렬하게. I hope you can understand what I explain. keep up learning Korean!