Undergraduate / Difficulty in writing details of each extracurricular activity [100 characters only?] [7]

I think common app wants 1000 characters, not 100
they asked for 150 words
check again

Undergraduate / "never a struggle", a UC Essay [5]

a college wants unique students. Since you're a normal rich white dude, that wouldn't drag the attention you need. You have to find something different, something that made you and only you.

Undergraduate / "flash floods in Jeddah, Saudi Arabi" - UT, issue of importance [3]

Jeddah floods caused a massive disaster including damages in houses , shops, warehouses, hospitals, vehicles, trees, bridges, and many other properties. Additionally, it formed bodies of water that spreads many epidemics through mosquitoes.

I think this is a bit better.
And I agree with Roxane Han in her response.
nicely done.

Undergraduate / "My experience practicing Tae Kwon Do " - Yale Supplement, 500 word essay [3]

OK,,

you wrote:
it was not enough to get through the training sessions as "best as I could" ,

and then wrote:
Yet I kept showing up for practice six times a week, and endured the coaches' harsh reprimands as best as I could.

I think it needs to be changed; you wrote it once as a bad thing, and once as a good thing.

Undergraduate / BE SUCCINT: WHAT TO WATCH OUT FOR WHEN WRITING UNDERGRAD ESSAYS [5]

thanx <<< succinct enough ?? :D