"I began my studies" is correct and usable in written English. You can use this phrase when you are referring to the beginning of a period of study. For example, you might say: "Three years ago, I began my studies in engineering at the University of Michigan.".
When I began my studies in Islam, I had the ambition of one day teaching, writing, and translating Arabic texts into English.
News like this had always felt comfortably remote during my childhood on the Upper East Side and my undergraduate years at Yale, and I had assumed that would continue when I began my studies at Hebrew Union College to join the Jewish clergy.
But after I began my studies, I was shocked by the difficulty.
When the tactics became overbearing during the startup stages of my company, I began my studies in time management.
Soon I began my study of Cantonese with the remarkable Geng Lin Wen.
Since I began my study into non-verbal communication, I am continually intrigued and surprised by how much we communicate with our bodies.
I began my study with Zuckerberg, or "Zuck" as people who don't know him at all prefer to call him.
Awesome tool! I started using it one year ago and I never had to look for another app
Ha Thuy Vy
MA of Applied Linguistic, Maquarie University, Australia