The Stroke of Today

What do you mean by stroke? A time, a touch or a medical emergency?

Today I'm went to the park where the place can release my pressure so I could unwind.  There were many people at there because today was a holiday. The fish in the lake were under more pressure today as more people were feeding them and the companion grad fish were snapping at the food crazily. Fortunately, they didn't have to worry about having nothing to eat.

Good effort, but pay attention to the tenses.

The Stroke of today

I'm going to the park. A place I can release my pressure.There are many people there because it is a holiday.The fish in the lake  are more pressured today because there are more people feeding them and their companions are grabbing the food crazily.(Weird sentence.)Fortunately, they do not have to worry about having nothing to eat.

 There are different ways to correct this.

I'm going to the park.  GO: I want to go to the park. I go to the park. 

A place I can release my pressure. <--english speakers may say "Relax" "unwind" or "rest" --> A place I can relax. 

I used ARE because I used GOING.

IT : singular     They: plural  

Hopeful I have helped. Keep it up and you will get better!