Grammatically speaking, you certainly can use “the launch of my career. What is the difference between Launch and Beginning? For me, launch implies that your career was set in motion with a lot of momentum from the very beginning, such as is true when one opens a business that is soon successful. From lower-level clerical jobs to quasi-technical, etc in order for me to maintain my career in the tech field, is my career a slow meandering after being recruited. It’s a journey of about 6 months. , finally depositing me in a role as an instructor of adults learning English as an additional language, so I would never refer to the “launch” of my career. I would use the words “beginning” for the gradual ramp up to what is now a solid career

path.