English diary 【19th time】

●Before correction by Chat GBT
Today is Thursday. I'm writing English diary after a long time. 
Lately, I'm keeping high motivation to work out. So, I'm in pretty good shape.
There's futsal this weekend, so I want to exercise lightly and improve my condition. 
Thank you for reading 19th English diary.  

●After correction by Chat GBT
Today is Thursday. I'm writing an English diary after a long time. Lately, I'm keeping high motivation to work out. So, I'm in pretty good shape. There's futsal playing this weekend, so I want to exercise lightly and improve my condition. Thank you for reading 19th English diary.

●Summary of corrections

1. "I'm writing English diary after a long time." - This sentence should be corrected to: "I'm writing an English diary after a long time." Adding "an" before "English diary" makes the sentence grammatically correct.

2. "So, I'm in pretty good shape." - This sentence is fine, but you might consider adding a comma after "So" for better flow: "So, I'm in pretty good shape."

3. "There's futsal this weekend, so I want to exercise lightly and improve my condition." - This sentence is grammatically correct, but you can improve the clarity by adding "playing" before "futsal" to specify that you'll be participating in the activity: "There's futsal playing this weekend, so I want to exercise lightly and improve my condition."