Actually prediction is not possible in crypto market but I can give some extent of making profit if you follow following steps.
First of all make an account on exchange which is quite popular among others like binance, houbi etc ... When you wake up on morning first of all check coin which is one highest volume and invest in that coin than you have to wait till afternoon than sell it.
I usually do it yesterday i made 1000 USD profit from binance.
one of the coin went on 130% in just 4 hours. I invested 950$ into that coin and made profit from investment.
Although no one can claim that he can give a 100% correct prediction about the market, but i think that it is also a fact that there are a lot of experienced people who have spend a lot of time in trading and therefore they have now good experience and can mostly give a very good prediction about bitcoin price.