Please Check My Grammar

My family has 5 people. My dad, my mom, my young sister, my young brother and me. We understand what you mean but this is pidgin English.  I don't know Vietnamese but the sentence is very Chinese-like.  We would say something like this,  "There are five in my family, my parents, a younger sister and brother and I, being the oldest."  My dad is a driver. What kind of a driver?  If he works for someone as a private driver, then he is called "chauffeur", if he drives a public vehicle, such as a taxi, then he's a taxi/cab driver, for a van, "a van driver", for a bus, "a bus driver".  My mother Dad is a driver and mom's is a housewife. This is warmer.  All of us children are attending school. So, a lot of serious difficulties happen, especially is economic surface. There are difficulties in our lives, especially economic/financial ones. Although, my parents meet with face the difficulties bravely so that we are well to taken care of.  us, They have never complained. They always work hard so that we have a better life.  to make a full life for us. If we have some problemstroubles, they are always ready to listen to us and will help us by do their best to help us overcome it. So we always study hard to requite [wrong word choice]  repay their efforts of my parents.

Requite:

1. "To respond",  She did not requite his love

2. "make appropriate return for (a favor, service, or wrongdoing)", they are quick to requite a kindness

3. "return/reciprocate a favor to (someone)", "Requitting kindness is not in their blood"

Anyway, good work. If we cannot understand, we cannot help to correct.

Here are some suggested changes to make this read more naturally in English.  Overall, this is a very good effort - your meaning is quite clear - except for the part about all of you attending school.

My family has 5 people. There are five people in my family; My dad, my mom, ,my mom and dad, younger sister, my younger brother, and me. My dad is a driver. My mother is a housewife. All of us are attending school. (Do you reall mean that all five of you are attending school?  If so, then what you have written is correct.  If, however, you mean that only the children are attending school, then you will say something like Dad us a driver, Mom is a housewife and the three children attend school). So, a lot of serious difficulties happen, especial is economic surface. Things are diffcult, financially, but my parents manage and never complain. Although, my parents meet with the difficulties to take care of us, they have never complained. They always work hard to make a full the best life for us. If we have some troubles, they are always ready to listen to us and will do their best to help us by their best to overcome it. So we always study hard to requite repay their efforts. of my parents.

Check grammar

There are 5 in my family, My parents, my younger sister and brother and myself. My dad is a driver. My mother is a housewife. All of us are attending school. A lot of difficult economical situations happen. Although its difficult for my parents to take care of us, they never complain. They work very hard to make a good life for us. When we have troubles, they're always available to listen and help us to overcome it, so we study hard to reflect the efforts of my parents.