Although I am not so self disciplined or studious, I challenge myself by learning by heart the corrections I receive on Italki. At first I found it hard to do, but it gradually grew easier. It really does take time, but I love it anyway.
You made only one mistake: never say "more easier". You can say either "easier" or "more easy" (they mean the same). In your sentence, a third choice would be "easy":
"I found it hard to do at first but it slowly grew easy."
Gee, Molly, that's quite a compliment! I'll try to live up it.