Homework: Do you exercise often?

나는 일주일에 한번 운동을해.
사실 옛날에는 아예 안했었는데 요즘은 운동을 안하면 체력도 떨어지고 힘들어서 억지로라도 하려고 노력하고 있습니다.
운동은 힘들지만 하고나면 정말 뿌듯합니다.

I'm exercising once a week.
Actually = Actually, I didn't use to exercise. But these day I'm doing = days I'm doing it because if I don't exercise my body hard and fall = hard, I'll lose physical strength.
So I try.
Exercise is hard = hard, but I feel proud after exercise.

Good day, Bailey! Once a week of exercise is not bad at all, rather than not doing so. Thank you for sharing such a thoughtful response. In addition, correcting subject-verb agreement and maintaining consistent verb tenses are the main ways to improve the grammatical structure. Watch out for the proper use of punctuation marks like "commas (,)." You can do this. Keep going, Bailey!