Start from Mark's Gospel

I have revised the elementary grammar of NT Greek. Now I listen to text recordings of all New Testament chapters whenever I do household chores. At night I read the text and refresh my memory of the grammar points.

I read only slowly. From which book should I start?

Perhaps it is good to start from Κατα Μαρκον. It is because, I will hear many similar sentences in Κατα Μαθθαιον και Κατα Λουκαν. Therefore, if I am familiar with words and sentences from Mark, I may be able to understand from hearing some words and sentences in Matthew and Luke.

That will give me a bigger sense of encouragement and impetus to move on!