Mashallah.
It is invaluable source of knowledge for me. However, it can be made easy to memorize, If you write some long transliteration words in separate shorter silibles, for example in sura 18:50. Also the phrases which are repeated can be written in bold or font different from the main one. May Allah, the Most Merciful, reward you for your great job.
Vili799 about
myQuran - Read Understand Apply the Quran, v3.3