ようこそ！

When you review the kanji, you should have the keyword on the front of your card, and the story hidden, should you need it. In this case, to take on your example, the keyword is riot which goes on the front of your flash card. On the flip-side of the card, you would have the kanji, 乱.

Embedded in the story you have "two primitive elements," rioting-tongue on the left, and barbed fishhook on the right. Now it is your task to form a clear image from the story, so that in the end you are able, to write the kanji from memory.

If the story does not suffice, take one off this website, instead of Heisig's own. Or come up with your own story, if it helps you remember it better. Just so that you are able to form a clear image in your mind.

The thing with reviewing from keyword to kanji is, that it's simply a waste of time, and does not do anything for you. If you would do it that way, you would have the kanji 乱 on the front of your card, and the keyword on the back of it, riot.

So, always go from keyword riot or whatever the keywords are, to your target kanji.

I read the last sentence in your post and I understood everything! Thanks a lot for the quick reply. I appreciate it deeply. Btw,  I'm on number 93!