This bit is built to help you with learning Japanese Hiragana.
Don't rush. You'll just forget everything in a week. Especially with the first few sets since you'll most likely finish them fast. Take the time to do the sets over an extended time to allow them to sink in.
Follow this general guideline to maximize your ability to remember hiragana:
|Set Number||Times per Day||Number of Days||Number of Tries|
Also remember to try writing down all the characters you learn. This will help you remember and also teach you how to write in hiragana. You can look online for stroke patterns of each character. Writing randomly throughout the day will only do you good!