Hi Rubén,

Great posting! I have made some suggestions below.  I hope they are useful to you.

Keep writing.  You have reminded me to write another posting in German :)

¡Buena suerte!

I have to write a bit every day, so today I want to tell you something about me and my history.
I have some problems with past forms, so I try to write in the past! Sorry if I make you crazy.

I was born in Barcelona in 1982, the year of the Spanish soccer World Cup. I was born in November, so I don't remember who won the cup. Google says that it was Italy who won.

When I was a child, I studied at a private school,

because my father and my mother works on the public one of the city?  for the local council?

and they didn't want the other people to think I had any special privileges.
So my father paid for a private school. My parents worked hard so I could study and grow up to be the man I am today!

At school I had many friends, two of them today are lawyers. And another is a police sergeant. This one, when he was a child, was the worst-behaved of the class. He fought with my other mates, and often with teachers too. All my mates thought that he would end up in prison. It's a surprise then, that today he is a police officer!

Thanks for your help!

Hello people!

Good evening!

I have to write abit every day, so today I want to tell you something about myself and my background. (para mí sueno mejor)

I have some problems with the past tense, so I am trying to it write in past. Sorry if I make you crazy.

I was born in Barcelona in November of 1982, the year of the Spanish Soccer World Cup, and I don't,remember who won the cup, however, Google stated that it was Italy.

When I was a child, I studied in a private school, however, my father and my mother worked in a public school in the city,  they didn't want others to know that I had certain privileges.

My father paid for the private school, both my parents worked hard to send me to this school. I studied hard and grew up to become the man I am today.  (hacerse un buen hombre de hoy)

At school, I had many friends, two of them today are now lawyers. Another friend became a police sergeant. When he was a child, he was the baddest of the class. He fights with another students, and often with teachers too. All men think like that. when he grows up, he finish in prison. It surprises me  today, that he is a police officer!

Thanks for your help!.

Muy interesante.