to analyze the right time to buy and sell bitcoin then you can predict the price movements of bitcoin and some other cryptocurrency and I don't think it will be possible for you to predict but if you have very much experience and expertise you might do
If you have the ability to analyze the market on technical grounds then you deserve to give the future price and may it right. If you can judge the investors mind what they want then it will be easy for you to give estimated price. But always say that it is expected and not guaranteed, otherwise people will use slang language about you which is not good.
It is not easy to predict the future price because nobody knows what will happen tomorrow. I dont believe in prediction because I experienced that all the prediction of the last year became false and the facts are against that prediction. You can analyze the market thoroughly and make your decisions about the coming situation of the market but it is not guaranteed.