For the first 1-2 years (yes, years) you stick with only the basics: The Four Noble Truths, Eightfold Path, Meditation, Karma and the Twelve Links of Dependent Origination.
For each topics that has a list (i.e. four noble truths, eightfold path, etc.) take one subject (e.g the first noble truth) and study only that for up to one month, minimum. It seems like a long time for just one thing, but the four truths, especially the first one, is very profound and a true understanding of it can bring a lot of wisdom and insight.
So take each item and study it rigorously, meditate on it and contemplate on it for a month. Only when you feel like you have a strong understanding of it can you move on to the next item. By the time you’ve studied each subject for a month for the whole list above, it would be about two years.
From then you can move on to more “advanced” study (i.e. emptiness, sutra study, levels of meditation, etc.).
As you progress in your studies and if you truly apply them to your life, yourself and others will see big differences in your life, in your personality, attitude and general outlook on life.
Smile and be well!