Viable path for late 20s

Hey guys,

I need some advice regarding my upcoming decision, which might affect my career in the future.

I'm an international student starting my two-year MSc in Finance at a target business school. Before my enrolment, I worked full-time as a middle office analyst at a U.S. bank in a least-developed country. But I wouldn't say I liked it, so I quit and went for my master's oversea and did 3 M&A internships before that.

Though I'm grateful to work part-time at an M&A boutique while studying now, it is affecting me, and my grade is terrible. So, I'm wondering if I should just quit and focus on my study instead of working simultaneously.

However, considering my age, I should continue to work and build up my CV. I don't know what to choose now—turning 30 soon, with just one year of M&A experience (mostly internship).

Appreciate it if any of you have any suggestions for my situation.

Thanks!