Skyrim - How to level up Illusion Skill to 100 in 30 seconds!

This method will work only if you already mastered the Illusion Skill and want to do it again!

*** MUST HAVE DRAGONBORN DLC, AND THE LATEST SKYRIM UPDATE (currently 1.9.32.0.*) ***

No console using, cheats, tricks, glitches, bugs. It's all legit!

Before we starting:
You need to have the Secret of Arcana abillity, which you can get after finishing the mission in Kolbjorn Barrow (in Solsthiem) and reading the Black Book.
You also need to have the Harmony skill, which you can get from some magic sellers after finishing the Illusion Ritual Spell.

Be sure to do this method in a place where there are many people, otherwise it'll work but much more slowly. The more people the faster the skill will raise!

1) Wear the Secret of Arcana abillity and the Harmony skill.
2) Get your hands ready by pressing R (drawing your weapon)
3) Take a deep breath.
4) Press Z (which will activate the Secret of Arcana) and spam as much as you can the Harmony skill.
5) watch the level goes up!

Yes, this can be done without Secret of Arcana. I using it anyway to let you know it exits and how useful it can if you don't have enough Magicka or clothes that make your spells spend less Magicka.
You can use Secret of Arcana only once a day.