Case preparation alongside full-time work is possible, but it usually requires a realistic multiweek routine.

Preparation time depends on your current skill, interview timing and ability to find useful feedback, not on a magic number of cases.

Three focused weekday sessions and a longer weekend mock may work better than exhausting yourself with daily late-night cases. Ask before the deadline and describe the actual scheduling conflict instead of assuming extensions are automatic.

Run one diagnostic case, then reserve predictable weekly blocks for weak skills and full mocks. The case interview preparation timeline can help you estimate the workload, but reduce the schedule when fatigue starts to hurt performance.

Even finding a partner after work is a challenge.

I can do short drills during lunch at least.

My biggest issue is maintaining practice consistency during weeks with late client calls.