Yesterday morning, I went with my mother to the beach. There were so many people that we couldn't find a place to relax. I used to spend my free time there when I was a child. I loved playing with sand and going to the sea. I used to stay almost three hours in the sea without coming out! 

     Now, I'm afraid of the sea. I think it's because I'm afraid of animals, and because when I was a child I didn't know about fish. I haven't swam in the sea for five years, but I think I'm able to swim now. I'm afraid of animals because I suffered trauma when I was 3 years after a dog pushed me to the ground and stood on me! 

 
     Anyway, I was talking about yesterday morning. We decided to go to the castle at the end of the long stone bride that crosses the sea to the castle. It's really very beautiful. When we were almost in the castle, I turned my head because I saw something. There was a man who seemed like a fisherman because he had long hair and his skin was tanned by the sun, but he wasn't. The thing that got my attention was that he was selling stones that he found in the beach that he had painted with  =beautiful  landscapes. I had to buy one to give it to my best friend and I did. The man was very friendly and I bought one for only 5 euros! 

     I hope that one day I can paint stones like that man does. 

The painting on the stone

Yesterday morning, I went to the beach with my mother to the beach. There were so many people that we couldn't stay anywhere! I used to spend my free time there when I was a child. I loved playing with sand and going into the sea! I used to stay almost three hours in the sea without going getting out!

Now, I'm afraid of the sea. I think it's because I'm afraid of animals and because when I was a child, I'm not aware of I didn't know about fish. I've not I haven't swum in the sea since five years ago, but I think I'm able to swim now. I'm afraid of animals because I suffered trauma when I was 3 years old after a dog made me to fall knocked me to the ground and stood up on me!

Anyway, I was talking about yesterday morning. Finally, we decided to go to the castle that is in at the end of a long stone bridge that crosses the sea until to the castle. It's really very beautiful. When we were almost in the castle, I turned my head, because I saw something. There was a man who seemed to be a fisherman because he had long hair and his skin was dark because of the sun, but he wasn't the thing that attrackted attention to me. He was selling some stones that he caught in collected at the beach and they were painted with a beautiful picture of a landscape!! I had to buy one to give it to my best friend and I did it. The man was very friendly and I could buy it for only 5 euros!

I hope one day I can paint the stones like that man does!!

(I know that I've made many mistakes, but I've tried to use other phrases to learn more English!)

Sí, hay muchas maneras de decir la misma cosa en inglés. Lo que has escrito tiene sentido, pero lo he cambiado para hacerle más natural.  

Muy bien escrito :)