Writing prompt: Sharing

Student essay:
Everyone has many interesting experiences.It makes our life colourful. We often share our experiences with our friends.It makes me feel so good.
I couldn't swim in the past.But Ireally wanted to swim in the river like fishes.So I asked my friends to learn to swim together.The swimming teacher taught us to swim.When I had some troubles,my friend usually appeared next to me and encouraged me.And she helped find out the roof of the troubles and solve it.We helped each other and learnt from each other.

Corrected essay:
Everyone has many interesting experiences. It makes our life colourful. We often share our experiences with our friends. It makes me feel so good.
I couldn't swim in the past. But I really wanted to swim in the river like fishes. So I asked my friends to learn to swim together. The swimming teacher taught us to swim. When I had some troubles, my friend usually appeared next to me and encouraged me. And she helped find out the root of the troubles and solve it. We helped each other and learnt from each other.