Hello OpenGL and C++ Professionals

Good day. I am honestly a newbie in the world of OpenGL. I would like to ask you guys if you can give some tips and advice on how to solve my project. (I mean, what are the important things I have to study in order to arrive with an effective and efficient solution)? I know OpenGL has a very huge coverage and I would like to focus to the topics that will help me focus on the project progress. My project has something to do with reduction of object files using local cells. Your inputs will be highly appreciated. Thank you.