Does anyone else here do i-ching (where you throw 3 coins down 6 times, and so on to find out what you should do on a subjet that's been bothering you), or am I one of the only people that isn't an adult that uses this to help them come up with a solution to their problems?

I've never heard of i-ching.
I have heard of flipping a coin to make a decision, using a magic eight-ball, or eeny-meeny-miny-mo. None of which are the best ways to make a decision.