If you're asking how to fit an MBA around your job, it comes down to whether you intend to keep working. Full-time programs mean stepping away from the role for one to two years. Part-time and online programs let you keep it and study evenings and weekends. Executive MBA programs are built for people who stay in their jobs, though they generally expect more years of experience and often some flexibility or sponsorship from your employer. Those paths differ in cost, admissions bar, and testing requirements, so the right one depends on your years of experience, your geography, and whether stepping away from work is realistic for you.
The piece you can act on now, whichever path you choose, is the test. Most full-time and part-time programs still require a GMAT or GRE score, and at the more selective schools that score carries real weight. Worth checking early, though: many Executive MBA programs, and some part-time and online programs, accept the Executive Assessment instead. Look at the requirements school by school before you commit to a test.
If you're heading toward the GMAT, the work is topic by topic. Learn one area thoroughly, then practice only that topic until your accuracy is consistently high before moving on. With a supervision workload, keep weekday sessions tight and focused, one topic or one sub-skill with careful review of everything you miss, and save the longer sessions for weekends. How well you use each hour and how many hours you accumulate both matter, and neither one substitutes for the other.
For the profile and school-fit side of this, I'd also post to one of the MBA forums here on GMAT Club. Those boards are built for that conversation and will get you far more responses than a prep forum will.
So, this week: take one of the free official practice tests at mba.com to see where you actually stand. That won't give you a study plan, but it will tell you how far you are from where you need to be, which is what you need in order to set a realistic timeline around a demanding job. Then post back with that score, your years of experience, the programs you're considering, and whether leaving your job for a full-time program is realistic. With those pieces I can get specific on both the program side and the testing side.
Plenty of people have done this exact thing while working full time, and your background is a real asset in it.
Genius001
how can i do mba as working at central bank supervision departmetn?