Today, I got a realization

[lei]

This is a diary entry. Please point out any mistakes and offer corrections.

I realized that before contacting anyone, even relatives, I should calm down first. My sister was in an accident, hit by a motorcycle. She called my cousin, who told me to call our aunt. However, my aunt’s line was unavailable due to the typhoon that hit our region, causing a power outage. I then contacted another cousin, knowing my aunt usually stays with her during storms. She didn’t answer but texted me that our aunt had returned home. I told her about my sister’s accident, but she said her husband couldn’t come because some roads are not passable. She then suggested I go to the hospital since I was nearby, and I realized I should have gone immediately. Instead, I wasted time telling others. Worse, I also told my other sister, who was busy at work, because we couldn’t reach our mom due to the power outage and her phone's probably out of battery. I realized, I should have gone to the hospital right away instead of following my cousin’s advice. The point is it's me who can do something and not other people.

 

[Tarheel]

Perhaps:

My sister was in an accident, having been hit by a motorcycle.

Was she on foot? Why didn't somebody call an ambulance right away?

 

[lei]

Perhaps:

My sister was in an accident, having been hit by a motorcycle.

Was she on foot? Why didn't somebody call an ambulance right away?

Thankfully, people saw what happened and she got rushed to the hospital.

 

[Tarheel]

The original leaves out an important detail. Perhaps:

My sister was in an accident, having been hit by a motorcycle. She called my cousin from the hospital. My cousin called me and told me to call my aunt.

I'm not sure I understand the last sentence.

 

[tedmc]

"Got a realisation" is not natural and incomplete.
How about "come to realise something " or simply "realise something"?

 

[tedmc]

This is a diary entry. Please point out any mistakes and offer corrections.

I realized that, before contacting anyone, even relatives, I should calm down first. My sister was involved in an accident - she was hit by a motorcycle. She called my cousin, who told me to call our aunt. However, my aunt’s line was unavailable due to the typhoon that hit our region (no comma) causing a power outage. I then contacted another cousin, knowing my aunt usually stays with her during storms. She didn’t answer but texted me that our aunt had returned home. I told her about my sister’s accident, but she said her husband couldn’t come because some roads are not passable. She then suggested I go to the hospital since I was nearby, and I realized I should have gone immediately. Instead, I wasted time telling others. Worse, I also told my other sister, who was busy at work, because we couldn’t reach our mom due to the power outage and her phone's probably out of battery. I realized (no comma) I should have gone to the hospital right away instead of following my cousin’s advice. The point is it's me who can do something and not other people.