A way that is kind of working for me is finding a friend in your class that is better than you in memorizing the quran and then get motivated by him. Try to memorize as much as him everyday.
Also memorize your previous lesson before you start memorizing your new lesson. This helps a lot because a lot of times you forget your lesson from the previous day. I wish I had done this more when I started hifz. But the main thing is dedication and effort. The more you put in to it the more you get out of it.
In the end its all up to Allah InshaAllah you will become Hafiz pray that I do aswell.