Mashallah. I read the thread and every post is benefits us. I am a hafiz myself and i have memorized the Glorious Quran under every environment. I read it in home, in the mosque, i read it full day from morning to night under teacher, two hours a day, half a day. I read it when the teacher used to beat me with sticks, i read it under vip treatment where the teacher is told to take special care of me. Ive read in pakistan and uk too where i live now.
I want to share some tips of my experience of memorizing. I will tell you the standard way of memorizing Quran.
First you get rid of the impurities and sins. Im sure you have read the posts about this. The one thing i want to say is please stop listening to songs. English or any kind of songs or music. It slows the whole process right down to turtle speed. To put it to the rabbit speed, you have to do Zikr in your free time. Now i will leave on to you to find out what Zikr is.

1. Sabaq: Sabaq is what you learn new. Like if your memorizing 5 lines a day. The next 5 fresh lines for your next day is called your sabaq.

2. Sabaqi: when your sabaq builds up. Like 5 then 5 then 5 that 15 lines. Those 15 lines is called your sabaqi. Now your 15 lines into the juzz. You have to repeat your sabaqi every day when you memorize your sabaq. For example youve memorized half a juzz. You sabaq will be the next 5 lines and your sabaqi would be the half juzz.

3. Manzil: when you complete a juzz and move on to a new juzz. That memorized juzz will be called your manzil. For example when you complete 15 juzz and move on to the 16th. Those 15 juzz is your manzil. Now everytime you do your sabaq then sabaqi. You have to repeat your manzil. Now its upto you how much you repeat your manzil. Half a juzz or a whole but keep repeating it every day.

Now when you learn a new sabaq. Memorize it and repeat your sabaqi from the start of the juzz. After that you repeat your manzil.
As you memorize like 20 juzz. 19 juzz will be your manzil so i suggest you should repeat one juzz a day to keep it up. And this sabaq and sabaqi technique is very good. It makes your manzil solid, mistake proof.

HOW TO LEARN YOUR SABAQ: This is the important part because your sabaqi depends on your sabaq. If your sabaq is strong then your sabaqi will be strong and if your sabaqi is strong your manzil will be strong. Now you see how these three steps relate into each other.
So why not focus in the basic: learning your sabaq.
Suppose your memorizing 10 lines. Read them first loud with finger tip on the line, moving as you read it. Try to focus on the page and the lines and read with full focus and concentration. This will help inshallah. Divide it into two lines or learn those 10 lines like you memorize it normally. Now close the Quran with your finger in (so you dont lose the page) and repeat those lines. If you have repeated it without mistake, good. Repeat it 10 times and keep repeating it. If you make a mistake or you think your reading wrong then open the Quran and look at the word. Then close it and repeat from the start.
Im trying to say that even if you made a mistake at the second last word of the 10 line. Open it, look at it, close it and repeat from the start. Read it mistake proof 10 times or more then go and repeat it to your teacher.

Inshallah this will help you memorize the Quran but REMEMBER ONE THING: it is easy to learn but it is hard to keep it remember. After you complete memorizing, read at least one juzz every day to keep you up and keep it remembering.
A good thing is to read your Quran in Tahujjad just before fajr. Read as much as you like in that prayer because that connects your heart with Allah very quickly.

I hope this helps you. May Allah be with you on every step and every word you read and memorize this beautiful, glorious Quran. It is the only hope for this descending mankind. Its time people open up this book and get faiz and blessings from it. May Allah protect you all.
If you have any other Questions just inbox me and i will try to answer with my best try and low knowledge.

Best luck and good luck,
From,
kasim.
walaikumusalam.