My current method is to study five chapters in the Old Testament, and then five chapters in the New Testament. I do one chapter a day usually, although I may do two or even three chapters if they happen to be short enough. But usually it's just the one. Then when I have completed five chapters, I switch over. I go through entire books at a time. For example, right now in the Old Testament, I am working through 1 Chronicles, while in the New Testament I am going through the Gospel of Matthew. I tend to read through the New Testament books in order, but in the Old Testament I jump around more between different kinds of books (so sometimes Law, sometimes history, sometimes wisdom, sometimes major prophets, sometimes minor prophets). For instance, prior to 1 Chronicles I worked through Genesis. I opted for 1 Chronicles next because some of its genealogies are similar to the ones in Genesis. It is fair to say that the early chapters of 1 Chronicles are a bit dry, but there are still some interesting things to be found in the midst of all the lists. For example, in Genesis I read that Abraham married Keturah after Sarah died, but then 1 Chronicles clarifies that Keturah was only his concubine. However, a concubine was still a wife, just one with secondary rights. But I realised that Sarah remained Abraham's only true wife, which was just kind of a cool thing to learn. I also came across the prayer of Jabez in 1 Chronicles 4:10, which was the subject of a rather peculiar book by Bruce Wilkinson, who falsely taught that it could be used like some kind of "magic formula" for daily life. I certainly won't use it in that way, but I did like the last part of the prayer: that thou wouldest keep me from evil, that it may not grieve me! Evil should grieve any child of God, and it is good to desire to be kept from it as much as possible.
While I have a small hardback KJV, I use the Tecarta Bible app and do all my highlights and notes in that. Tecarta also has a desktop version of their app that makes it easy to search for notes. Sometimes I study on my phone, and at other times on my tablet. Anyway, that is just the method that works for me at this time. There may come a time when another method will be more effective, but for now, this is what I like to do. I think there are a lot of good ways to study God's Word. The most important thing is to actually do it! And of course, don't rush it (which is definitely the wrong approach).