you can read or watch trading tutorials on youtube, I suggest you to know what is the Support and Resistance, Moving Averages Convergence Divergence and Relative Strength Index. these things are the most often used among Indicators by many traders, although these wouldn't be able to give you an exact next movement of a certain coin but these are very helpful to minimize the risk. also you have to be very patient because trading would also require you to wait for a good timing before entering a trade. be a disciplined trader and always stick to your plan that once gave you a successful trade.