Hey Haejin,
I've been following your posts and I think this is the first one where we have more or less the same idea regarding the triangle. I made a post (which also mentions a larger H&S forming) and I'd be grateful if you could have a look...its not a long post at all. Thanks :)
https://steemit.com/eth/@ilnomis/ethereum-h-and-s-and-the-current-mini-falling-wedge