1 Corinthians (16): No idea, just started haha!
After many more years of doing Bible Memorization and living in university, I admit that it is very challenging to continue putting information in my mind amidst all the work we have to do. Readings, biology, human anatomy, law cases. So I realize that there is a variation in the way memorization should be done over the course of the year.
For myself, during the semester, I decided to do 10 new verses a week starting from Tuesday, till the next Tuesday. This is because in my timetable, Tuesday starts with no morning lessons and I have the space to track my progress and also test myself. So I will review all the verses that I had done for that chapter and run it through in my mind. I would also find ways to rehearse what I had memorized previously.
This number 10 is arbitrary, usually I will aim to get 7 done on the first day, and spend the rest of the 6 days practicing and digesting the entire 10 verse as much as I can. However, I feel that the 10 verses a week model of memorizing seems more effective for a more fluid/random schedule. It is okay to miss out 1 or 2 days of the 7 on practising, but with the 1-3 verse model, just missing 1 day can really affect the momentum a lot. My schedule became a lot more erratic and tiring in later part of the years, thus there were days where I just had no mindspace to practise (and it'll probably be a good idea to not overly strain our mind during terribly mind-stretched weeks). With the 10 verse a day, I had more flexibility to decide when to practise.
I think the most convenient time to practise memorizing is during travel time. I do it a lot myself, and repeat the practise up to 3 times (especially on days when I'm travelling a lot). I find that the more times its practised in the same day, the effect is exponentially increasing (this is especially useful for those of you who have "poor" memory :D)
The above is what I'm doing - something I devised knowing my own quirks, schedule and habits. I share this with the hopes that you will find ways to make this memorizing practice work for yourself :)
IMPORTANT: If you find that you cannot sustain doing this over the weeks/months/years, don't worry. What matters is that you persist, even if its on and off. Sometimes in life there are other things that take up more of our brain space (especially for students, I feel you!). It is fine to stop for a little while, but do not give up on it entirely. I often take advantage of holidays to set aside a routine time to pick it up again. After all, having more freedom to plan our own day's schedule will really help in creating space for us to continue memorizing! :)
I think something I didn't realize is that being familiar with all these passages is a lot more than a sum of its parts. Often when I read a particular epistle, I find that I instinctively would consider and think about similar or contrasting principles or verses found elsewhere. And at times I get to compare and relate these verses to each other to get a better picture of the passage or whatever was being said. It also pushes my mind to consider the different dimensions or implications of the verses under scrutiny. And this can only be done if I can summon these verses in my mind or at the very least have a vivid impression of what these verses mean. I find that having done a bible study on a particular passage before is okay, but not very sufficient to make such contrasts at a moment's notice. Making these verses instinctive would be necessary.