Preparing the GMAT part 1: quantitative and verbal

I will write how I prepared the GMAT just to let you know about my experience, maybe it will be helpful for you. But before I begin you must realise that the amount of preparation needed to take the GMAT depends on different variables, for example the score you are aiming at, how is your English level and if you have taken tests like the GMAT before (i.e. multiple choices and not a lot of time).