The last time I gave a hand to someone

You are both fortunate to be friends, [이름]! I am grateful that you could right your thoughts understandably! -Faith-

Because of the pandemic, I don\'t have enough opportunities to give a hand to others.

>> CORRECT

I really try to recall the moment I helped someone.

>> CORRECT

OR: I want to recollect the time when I offered my help to someone.
 I and my friend decided to take a computer license which gives additional points when we get a job.

>> My friend and I decided to get a computer license which gives additional points when we look for a job.

It\'s really hard to register to take a test because a lot of people want to take the test.

>> It\'s really hard to register to take a test because a lot of people want to take it.

However, my friend couldn\'t apply it because she had to go to give a private lesson.

>> However, my friend couldn\'t apply it because she had to give someone a private lesson.

Therefore, I tried to register for the test instead of her.

>> CORRECT

OR: Therefore, I tried to register her myself.
 It was small help, but she appreciated me.

>>  It was a small help, but she appreciated me.

She always helps me in a variety of ways, so it was a chance to repay her kindness!

>> She always helps me in a variety of ways, so it was my chance to repay her kindness!