Is there any techniques or tricks to predict the future price
From me personally, Predicting techniques reflect events behind / before.
To answer your question, there is no tool to predict the future price of anything. You can only find tools with which you can use to blend with the trend.
And for you. Predicting it doesn't have to be true, it can be true it can also be wrong. So for those who want to predict the future, reflects what happened before. Analyze. I think that's enough.
The point is that we analyze, predict, guess, so it doesn't have to be right. That can be true and can be wrong.