Describe the experience of being in a large and uncontrolled crowd

Last week, I had gone to London station to take Hogwarts Express to go to Hogwarts. There was a sea of people coming at the wave after wave. The platform was like a swarm of bees as trains were delayed and people were waiting for thousands of delayed trains. This caused chaos. There were many chances of people to fall off the platform and going one platform to another was a nightmare.

I swam against the tide of people and somehow managed to get ashore the platform Nine and Three-Quarters.

The atmosphere out there was very hot and more than that even the steam engine trains provided steam which made the climate to be absolutely hot. It was stinking of the sweat of the people. It was the worst day to be at the railway station. There were many chances of getting caught in a stampede and carrying luggage along with you was like weight lifting. It was even difficult to stay alive as it was suffocating. No magical spell can work out here. Our hands are congested with other wizards and witches that it becomes difficult to remove our wands from our pockets too. It was the worst day to go to Hogwarts.

There was so much of chaotic as well as noise that you can't hear the railway announcement, even you can't hear any of the train's whistle. There was no chance of coming inside the platform or going out because one everyone was stuck in the crowd. You can't ask anybody for help as there were many people who themselves needed the same help like me!