I have been writing this story for English class and would love some input on what i should add to this story. I don't want it to make it a sappy story either. Also sorry for the grammar errors i haven't

perfected it yet.

The last man on earth sat alone in his room, silently staring into space. Not knowing what to do after realzing he may be the only person alive. He lived in a small town in kentucky and was attending a university . He was a young man in his early 20s who was an exceptionally smart man who knew a catastrophic even was going to unfold.
Apparently, the russians were angry with america after siding with the country they hated most and was planning to start World War 3 in Russia. Result of that Russia had sent 2,000 atomic bombs our way. In return america sent 3,000.
After realising what may happened Jason built a bomb shelter in his basement. He was constantly telling his friends to build one but they were skeptical and said told him "There wont ever be a nuclear war and it cost too much too build." His shelter was stocked with necesitys to survive for 5 years. He had everything from ramen noodles to his own garden of fresh vegetables. His parents thought he was crazy for building such a thing because they were just like his friends and told him, "That type of event is never going to happen there is nothing to worry about."
So here he was the last man on earth, not knowing what to do, sitting, wondering, and asking why no one but him has survived. While wandering around his shelter he suddenly hears someone yelling, "Hello!? Is anyone here?" Jason thought he was just hearing things but after it got louder and closer he heard a knock on the door. For a second he thought he really was going crazy but then it came again and again. then came a reassuring scared female voice,
"Is anyone there? Please, anyone?"
Jason stood behind the door hesitating if he should open.
"Oh please let someone be here! I am unable to find any other survivors" the girl sobs.
Jason opens the door.
"Oh! Thank God!" Shouts the young lady as she hugs Jason. The hug came so fast that it caught him off guard.
Jason is still baffled not know if this was real life or not. He has not been out of shelter much because he has been alone for 2 months and previously searched for 3 weeks and found no signs of life.
She says, "I'm so glad I found another person I thought I was the only person left! I have been searching for the last 2 weeks and noticed the sign you had put up."

Reminds me of movie and a book I read!