Narrative help

Hi. my teacher asked me to do a narrative to deliver.. can somebody tell me if I made any mistakes ? thanks

I rushed into the metro train before the doors slammed shut. Then I noticed how strange everything seemed. There was only one passenger in the metro train, which appeared strange to me because it would normally be packed. I took a quick glance at the man and got immediately a weird feeling, he had dark eyes and dark hair and he was entirely dressed in black. Nevertheless, I kept on walking and I sat on the bench. The metro train started moving and that was when the lights started to work abnormally. Metro by itself it’s a bit scary; add the flashing lights and an odd man and you get a creepy scenario. I started getting anxious and my heart began to pound strongly since I am paranoid and always picturing the worst scenarios, what was happening got me certainly alarmed.
The man stared at me, as if he was making some type of plan in his twisted mind and I couldn’t call anyone because there was no signal and there was nobody else there to help me.
The man wearing black stood up and started walking towards me and that was when I completely panicked and my heart skipped a beat, he kept walking in my direction with his eyes fixed on mine. The flashing lights raised my stress and my dread. I couldn’t believe what was just about to happen. I began thinking about my family, friends and all the people that I cared about and that maybe I would never see them again…
He was getting too close and to my relief, he just passed me by, still staring intently, stopped in front of the door, the metro train stopped and he got off. And, suddenly, everything went back to being normal.
I couldn’t quite understand what just happened but I calmed down and when I arrived to my stop, I walked out and went to a post of information and I was told that the metro train never had any problems.
Since then I never saw him again