Hi,
I can summarize the road map in the following points:
1- Start with preparation for GMAT. I won't go into details. Just follow what Rich advises you. I want to highlight that it will be the wrong step if you quit your job to this. You have plenty of time. You need just organization and strict plan. In those 2 years you can achieve a lot that are meaningful in your resume and application and also can reinforce your relation with recommenders. If you quit now, you will ruin your resume. The gap will be unjustifiable to adcom.
2- if you are international student, you need to plan for TOEFL. Please check the requirements for each school website.
3- Although you will apply later in 2017, you should take a look for the essay to familiarize yourself with essay questions. You may strongly consider to work with a good consultant to shine your story and present you well. GMAT club has a big list of admission consultants. Take your time and review their service and people reviews about them. Now you can search and hire her/him later before application season.
4- Prepare your resume to be ready and every quarter or semi annual update it with your achievements and skills.
I have seen some schools. I have some questions
1-Based on what criteria did you choose them?
2- what is you short term goal and long tern goal?
3- How ma professional Experience do you have? IN what field?
4- What is your GPA?
Good luck