Can you solve this?

I came up with a little something to see if people are a thinker or not. I even had trouble putting it together. Can you solve this riddle, how long did it take you? What did you think of it, did you have trouble? Here goes:

First is last, second is third, third is fourth, fourth is second , fifth is itself, sixth is third, seventh is first, eith is fifth and third. ninth is first.

The first is what you should pay attention to

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Feel free to distribute it to people and see if they can solve it, in fact, please do!