Embarrasing experience

I am used to take a subway, when I move to other place. One day, I took the subway, at that time I wore a high heel, so I had a footache. I begun to find seat. However,as there were many people, so there weren't seat which I can sit. Whenever the subway arrived at the station, I searched seat, finally I found one seat near from me. I walked to there to sit on the seat. But one ma'am pushed me away from seat, and she sat that . After all, I lost my seat. I disappointed, and I had to endure my footache.

Hello [이름]! Oh! I'm sorry to hear that.  That's really a bad day.  You should have looked  for a man and sat on his lap instead haha.  Just kidding.  Well , hopefully that will not happen again right? You better be careful next time. Monica   I am used to take a subway, when I move to other place. >>>correct One day, I took the subway, at that time I wore a high heel, so I had a footache. >>>correct I begun to find seat. However,as there were many people, so there weren't seat which I can sit. >>>I begun looking for a seat but there was no available at that time because there's a lot of people. Whenever the subway arrived at the station, I searched seat, finally I found one seat near from me. >>>Whenever the subway reaches a station,  I search for a vacant seat and luckily I found one near me. I walked to there to sit on the seat. But one ma'am pushed me away from seat, and she sat that . After all, I lost my seat. >>>I walked toward the vacant seat but a woman pushed me and sat on that vacant seat.  I disappointed, and I had to endure my footache. >>>I was disappointed and had to endure my footache.