However, when I recently reached my third year of my major in Concordia University, it found me under very difficult financial circumstances.
Would rather say: However, on reaching the third year of my major at Concordia university, I came under some difficult circumstances.
From the beginning of last year, my father had to retire from his job in Al-Khobar, Saudi Arabia, because the company sold its office in that city, and let go of all its employees there.
In the beginning of this last year, my father had to retire
from his job in Al-Khobar, Saudi Arabia as the company sold it's office in that city and thus let go of all its employees.
The money that he was paid each month COULD barely cover my parents' expenses.
Therefore, I have started working IN A part time job FOR MINIMUM WAGE to cover the expenses for my basic needs.
In the third paragraph change big to immense.
Hope this helps!