First notebook entry: Introducing myself

Hello! My name is Rubén and I'm a 37 years old man, married and father of a beautifull daughter. I would like improve mainly my spoken English. I can help you with your Spanish skills. Regards.

First notebook entry: Introducing myself

Hello! My name is Rubén and I'm a 37 year old man, married and a father of a beautiful daughter. I would like improve mainly my spoken english. I can help you with your spanish skills. Regards.

First notebook entry: Introducing myself

Hello! My name is Rubén and I'm a 37 year-old man, married and father of a beautiful girl. I would like to improve mainly my spoken English. I can help you with your spanish skills. Regards.

Hello! My name is Rubén and I'm a 37 years old man (1), married and a (2) father of a beautifull daughter. I would like improve mainly my spoken English. I can help you with your Spanish (3) skills. Regards.

1.  "I'm a 37 year old man."

Sentence structure:  subject verb adjective noun 

In the above sentence, the highlighted portion is an adjective. When you remove the adjective, you have this sentence:

"I'm a man."

Sentence structure:  subject verb noun

Another example:  "I'm a 37 year old."  

Sentence structure:  subject verb noun

Now the highlighted portion serves as a noun. 
 

Yet another example:  "I'm 37 years old."  

Sentence structure:  subject verb adjective

In this sentence, the highlighted portion is an adjective. 

2.  Missing article.

3.  Languages are proper nouns and should thus be capitalized.