I need help asap!!?

i have to write a narrative essay 250 words about my first ride on a bike this is what i have it must be detailed and specific. Did i do it any suggestions? the problem is i dont feel like this is my first ride cause honestly our first ride (well at least mine was) that it was scary you know how can i improve this to make it seem it was my first ride. were can i add details saying i fell off and bruised my leg and how can i say it?

When I was a young girl I was always happiest on my bike. There were many places around my home that were traffic free and great to ride on. I can remember the wonderful sensation of flying as my bike zoomed down a hill and the wind blew on my face. It was one of those pure joys of childhood that you never forget. On my bike I felt totally alive and at one with the world.
It all started one afternoon after my 9th birthday party. My mother told me that outside there was a gift for me. I was very excited and couldn鈥檛 wait to see what it was. There I was outside under the warm sun, when I saw a pink beautiful bike and my father. I ran towards my dad hugging and thanking him ignoring the flies buzzing around me, and then to my beautiful bike.
I slid my tiny feet into the rubber straps of the petals. Gradually, my tiny legs frantically rotated forward fast and faster. I did it. I finally balanced my body perfectly. I kept moving forward, watching the dark pavement pass under the wheels. N
Never in my life did the pungent smell of hot rubber on concrete on a sunny summer's day please my senses so much. The fast transportation provided a sense of freedom.
I then pushed my legs back, causing the wheels to come to a sudden halt. I jumped off the bike, admiring my first liberating ride.

I stood there staring at the bike in admiration. The shiny pink metal glistened in the sun light. No scratches or marks were in sight.

well if your first ride was scary you need to incorporate that somehow into your story, you could do something like, "Although the ride was thrilling, it was still gut wrenching. When my bike started to pick up speed while I coasted down the hill, in the back of my mind I was chanting to myself, Don't fall, don't fall. I kept thinking it over and over and soon it became like a mantra to me." And keep going witht that, or however you feel is best.