Hello and thanks for your post.
The application process is truly holistic, and committees will look at your stats (GPA and GMAT), work experience, and extracurriculars.
Your GPA is strong, so that is a good start. As for your GMAT, you should definitely take it again – in fact 3-4 times total is fine – to make sure you are realizing your potential. Target above a 730 if possible, as the average score in your demographic exceeds that. You may still want to illustrate to the schools that you have the academic ability to succeed in the classroom. You could showcase your quant ability in your resume, your recommenders could do the same in their recommendations, or you could even take a supplemental course such as stats or calculus.
It is hard to gauge your work experience without knowing your accomplishments and impact you have made there. But having worked at Deloitte myself for many years, I know that schools are impressed with applicants from there. It is nice to see you have already been promoted. However, the average years of work experience is closer to 5, so if you choose to apply with slightly fewer years, make sure you demonstrate why now is the time. And because of your lighter experience, it’s even more important to show you have made an impact and demonstrated leadership there. Ideally this will be supported by a strong recommendation letters as well. It will also be important to explain why you want your MBA, and to also illustrate the skills you already have which are transferable. Be sure your story makes sense, and is realistic and specific.
Regarding extracurriculars, make sure to really emphasize your leadership roles you have taken on. Your blog certainly sounds impressive.
If you continue to strengthen your profile, you do have a chance at some of these schools, but they are extremely competitive, and each school simply does not have the room to admit all the world's qualified applicants. For that reason, I suggest apply to several schools, including reach, target and safety. You could also apply to schools in the US.
Good luck!